If you have it available to you, two piece Merciless Gladiator for the set bonus makes reaching crit immunity very easy. I've been using a hodgepodge of gear for my FR set, but I'm also a bit of a slacker. For example...
[Merciless Gladiator's Dragonhide Helm]
[Merciless Gladiator's Dragonhide Gloves]
[Veteran's Dragonhide Bracers]
That's 103 Resilience right there if your gem colors match. Swap out shoulders for the gloves (and match Gem colors) if that suits you better. This leaves you free to focus on your FR and Stam in every other slot.