To put an example: Fiery Dragon Sword looks bad and very weird in preview mode without the flames and that shape, but asolutely awesome on gameplay.
All this weapons (or most of them) have awesome and detailed particle effects, and I'm nearly sure KraitKin serpents will move alive (and maybe the Torch and the Shark on the Maw of the Deep move too, but not sure about those ones).
Just wait to see them ingame and then judge, those preview images never do justive to weapons with particle effects.
I'm hesitant to see some Bolt footage to see how the lightning looks.
I honestly don't mind most of the weapons, but can you seriously look at the Quip and tell me that particle effects can actually make that look like an awesome weapon? unless the effects completely cover up the model i guess.