Force Users who *should* be powerful, but..
..lack feats in the relevant area. E.g Agen Kolar's best TK feats include Force pushing droids and snapping a sword. Is he just a fugging weakling despite for all and intents purposes being presented as exceptional? Or does he just lack the needed showings?
I think it's this issue that creates a lot of the "X is a better duelist, but is less powerful [for no apparent reason other than lacking feats]" situations.