I've yet to run into any Warriorcat names via FH that were particularily outlandish, but there are a few that bugged me, and that was mostly because they would have a similar ending and begginging letter for the first and last part of their name. Like 'Silverriver for example, or Whiteear for another. Not a big thing but it bugged me none the less xD
Also, any warrior cats who had an injury somehow made into their name, like Blindeye, Brokenfoot, Halftail, ect. They wouldn't have been born like that so why one earth would any reasonable parent give them names like 'Halfkit and Brokenkit?" o-O
Some Warrior names that I like ~
Wavewatcher, Fallingstar, Seastar, Maplesky.