My opinion wouldn't probably matter now since my reply is really late, but since I'm such an advocate of S.H.Figuarts, here's my two cents worth.
The thing with S.H.Fs is, you will surely get your money's worth in terms of durability, poseability and show accuracy. My figures are mostly the metal heroes kind, so I'm not sure if this carries over well to more organic figures. Looking at the pics though, it seems they do, and I'm very much pleased.
However, don't go looking at S.H.Fs if you want a lot of accessories and extras. Apart from some spare hands, S.H.Fs are usually weak when it comes to extra bits. You'd still get the essentials, but then that's it.
Now, about exclusives, Bandai is a complete troll when it comes to that. They'd release one figure in a must-complete-group, then release the rest of the members of the group as exclusives (as you can see with Vegeta).
Bottom line, even if they're a ton more expensive, especially if you have money to spare, go get the S.H.Fs over the Revoltechs. Better poseability, better durability and better show accuracy, plus they're much more charming on camera too!