I'm not a fan of the stock hooks on the Wiggle Warts and want to replace them...what size does everyone recommend?

If you don't want the hooks to foul, there are several choices.  #6 on the front and #8 on the rear.  This works well if they are high quality hooks like Gamy Round Bends.  Second, you might try Mustad KVD #6 short shanks, if you don't mind their in-bent hook shape (I really prefer regular round bend hooks for their better initial hooking power).  Gamy also now makes #6 round bend short shank hooks, which should work as well as the first Gamy option.  I just won't use trebles that can foul on the cast.