I wrote a post about this already, but to summarize:

Healbot pros: One mod, easy to update on patchday. Usable out of the box, extremely easy to configure. Doesn't need any other addon to work (e.g. clique) -- a complete solution to healing.

Healbot cons: Less configurable than grid. Generally takes up more screen real estate.

To compare these mods to operating systems, Grid is Linux and Healbot is MacOS X. And just as with operating systems, people are very zealous about their choice . I use healbot (and MacOS X, for that matter) because I am happy with the UI they present me, and don't need the extra configurability. If you don't like the healbot UI, having to mess around with grid addons and so on to get your UI to look just the way you want it will be a tradeoff worth making.

P.S. Is it known which mod is more efficient in terms of CPU/memory use? I have heard healbot is more efficient, but I don't want to report hearsay.

As a carryover from BC days I still use Lifebloomer in addition to Grid. This allows me to set aside tank targets (or other targets) and track HoTs on them (esp LB)in a way that I still find more visually appealing than Grid. I am not sure if that would help you, Mourad.

This is flat out not true. Please don't attempt to make this point ever again. Clique is simply a mod for those that are too lazy to write (or copy/paste) macros.

Grid uses 1.16MB memory. Can anyone report Healbot memory usage?

Please don't be rude. One of the reasons Clique was made was because mouseover macros bound to mouse keys sometimes fail to work with certain unit frames. Now, it may be the fault of unit frames in question, and not Grid's fault, but it's still true. In the interest of accuracy though, yes you do have a choice in Grid to either use a second mod to handle your mouseovers, or you roll your own macros. (Honestly for most technically unsophisticated people rolling their own macros is even harder than downloading a second mod, so I am not sure this is a point in Grid's favor. Grid, like Linux, is for technically minded fiddlers).

I've always wondered why there isn't a simple plugin for grid that let's you specify a few units of your own, like oRA2's PlayerTargets. I'm not programming kind of guy, but it just seems a very simple thing to implement, much moreso than all the other options in GridDynamicLayouts or GridLayoutsPlus.

In rebutting one false statement, you make another. Clique is not the lazy player's way of avoiding making macros. (In fact, there is an option with Clique to create or make use of macros, which I personally find useful.)

Clique provides a (potentially) more efficient means to bind spells than is possible with macros bound to one's keyboard. Spells can be bound on up to 5 mouse buttons plus any combination of Shift, Alt and Ctrl. This allows dozens of different bindings to be set up that can be quickly and easily accessed. This also leaves the keys 1-0 (and others) available for other uses. (I have offensive spells bound to those keys, as well as a few "Oh Sh*t!" buttons.) Also, depending on how a player binds their keys, it is possible to run (using WASD) while casting with Clique, which I would imagine is more difficult to do with normal key bindings.

Granted it may have been a bit hasty to label Clique as the lazy way out. However, saying that you can only effectively use one mod if you add a second is just plain wrong.

As I mentioned in this thread previously, I used Clique in BC and i can tell you my hands are very happy after a 4-hr raid using Grid + mouseovers whereas I had constant cramping with Clique from trying to contort my hand to hit the Shift, Alt and Ctrl keys while moving with the mouse or WASD. Maybe it has to do with my hand size, maybe not. If you can't do your job and enjoy the game, what is the point of playing?

The point above all else is that each player should choose what works best. If you aren't sure or have never used anything, I recommend to try all the options listed in this thread. You may not like MAC or Unix, but that doesn't mean you won't like Grid or Healbot.

BTW- no one replied to the memory usage for Healbot. Can someone check that and post a reply on that please?

I'm sorry, but argueing for picking either black or white just seems inane when theres so much gray to choose from instead. If your limbs start hurting from trying to operate a Clique-only healing setup for a raid long, why don't you just make a few mouseover macros to complement your Clique setup?

Hell, you could even go as far as to include your target as a viable way to direct your healing again. Someone else in this thread mentioned macros he made for his healing spells that did different things based on the various conditionals. I have something similar to this and it allows me to effectively use my target for healing when my mouse is too busy performing other functions that are important for my own or the raid's surival.

Come on people, be creative!

Thanks Smoothie
I used your macro and modified it

#showtooltip Regrowth
/cast [target=mouseover, help] Regrowth; [target=target, help] Regrowth; [target=targettarget, help] [modifier:SELFCAST, target=player] Regrowth

With "#showtooltip" you get the tooltip of the spell and you don't have to search for the icon (thats the only way to get the Lifebloom icon). Just select the questionmark icon and wow will choose the correct icon.
I prefer the default ALT-selfcast and no target->no cast so I changed the last part.

I'm doing Naxx with these macros the first time and it's great.
Without having to click my targets, I can heal much faster and lifebloom drops less often.

#showtooltip Regrowth
/cast [target=mouseover, help] [target=target, help] [target=targettarget, help] [modifier:SELFCAST, target=player] Regrowth

Can just put the name once at the end and group the conditionals. As soon as one is TRUE it will fire the cast on that target from left to right. Saves some space and makes it easier to copy paste for other spell names.

It's a grid plugin: GridSideIndicators.