[Incarnate Alpha - Best Choice for DPS]

I'd stick with Musculature.  Claws attacks recharge plenty fast out of the box, and pretty crazy fast once slotted and hit with bonuses (and Hasten if you went that route).  I'd personally prefer to swing less and hit harder than to swing more for less damage, but do what YOU like.  So much of a satisfying attack chain is how it flows together and feels to you in practice.  You can give it a try pretty easily on the beta server if you're curious.

[War Mace?]

War Mace is great and you can pair it with anything, so it just depends on how you like to play.  Some secondaries like Bio are very clicky -- great sets with top-shelf survivability so long as you're clicking the powers that save you.  Others are pretty hands-free, like WP and Invul.  Some have some endurance built in, but that's less of a problem these days with all the uniques/procs that help with end.  Some deal very significant amounts of damage.

 

So again, it really just boils down to what you like.  

 

WM hits hard, can be distilled down to a great attack chain with fast-animating, hard-hitting attacks, and has two excellent AoEs -- one a pretty tyipcal PBAoE that you'll enjoy, and another targeted "cone" with a crazy awesome 180-degree arc that you'll adore.  In my opinion, WM and TW are now the strongest-feeling melee sets in the game.  SS is great, but only a couple of its powers really feel super strong.  In WM every attack feels like it hits like a truck, and most do.  Tons of knockup, so it's also one of the better damage mitigating sets.

[Fighting Pool?]

Are you guys taking Tough and Weave on your sentinels?  Any thoughts are appreciated.

[Voltaic Sentinel, now with 85% less PITA!]

It should, yeah.  Any power that requires placement can use it.  You can use 'target' as location to center a power like Rain of Fire on a specific target.  This'll change a ton of things for a lot of powersets.  Can't wait to try it.