Without question, I would recommend the thumper fry as your primary mold... you got good vibes in a small package, and if you want, you can cut the paddle off for a more subtle pin tail.
As a second choice, I would be inclined to go with the mini croaker and use it in much the same way (with and without paddles) for nymph and/or cricket imitations. Heck, you could maybe even try it as the frog it was designed to be.
I have no doubt both of these (with paddles) can tickle many a bass' interests as well. (I've caught 4 pounders on 2" twisters in the past when the bite got tough; tiny jig baits can be a GREAT change up over finesse worms.)