Fithvael

I'd really like to retouch on this issue; I haven't been PvPing for long on my Paladin but I do enjoy it quite a lot, although I feel rusty me and my druid partner are making decent progress in 2v2.
I'm fortunate enough to be in the same guild as the current best two arena Paladins on my server. I've hassled them for various tips but their specs appear to be slightly off-beat than the more popular 41/20; more so with 2.1 imminent I was wondering the value of certain Prot talents.

Mexxie (Link) runs a 40/21 build and says he prefers 5v5 over the other arenas. The key points is that he has full Shield spec, no improved Righteous Fury, no Divine Illumination, full improved HoJ and no Stoicism and also uses the Gladiators Shield Wall.
Robinvi ( Link) uses a 43/18 build, but is not in his arena gear as I type. He does however use more PvE orientated gear than Mexxie. The key points in his build is: full Blessed Life, 2/3 Shield Spec, no Righteous Fury, no Divine Illumination, no Stoicism, no improved Conc aura* but improved HoJ. He is also in the same 5v5 as Mexxie.

I'm not discrediting either of them when I say they don't have a certain talent, they're merely the main points I'd like to be considered when compared against Sck's and Hubris' builds. With 2.1 Illumination is nerfed to an extent that we'll definitely know its impact. From looking at video's and first hand experience I know Arena's can be of varying length, but as you progress it appears that they increase in length. When 2.1 hits will Divine Illumination be of even more importance or is it really not that huge of a difference? I know in 2v2 the higher you go the more common the Warrior/Paladin matrices are and mirror matches take their time.
Or like Robinvi's and Mexxie's builds will it be better to focus on improving our blocking and physical reduction? This also leads me into the next question about Improved Righteous Fury; how is it in comparison to Improved Block? It also reduces spell damage but is dispellable, but I find if anythings going to be set on my its a Rogue.

Finally: Improved HoJ and Stoicism. I can see the value in Improved HoJ if you have the points spare, there have been numerous times I wish i could've hit it more. It is however quite a few talent points to get this. How does it measure up in 5v5? I believe Stoicism was touched upon earlier in the thread by a poster who'd concluded that it really wasn't worth it in the end, yet I still see a lot of people use it. I have it currently but I do agree with the poster that I'm really not dispelled too much at a 2v2 level and I may drop it in future.

*Not needed twice because they're on the same team.