I agree, though I'm rather curious why this makes him hated but rainbow dash loved, what's the differences between the two ways? maybe they could use it to improve spike.
Mare Do Well - true, it does seem to be a key part of her character as it likely drives quite a few of her actions
Mmmystery - I feel like there may be a bit more with at least the novelty of clue-esk style as well as the detective bit.
Simple Ways - True, Spike was rather good in that episode and AJ was great to see dressed up like rarity
Boast Busters - Trixie does have some nice quirks though I don't feel as though that's the best episode to attribute to her as her defining episode, while it did help to introduce her in a memorable way I think Magic Duel did a bit of a better job on her character, though I suppose without twilight running her out of ponyville the events never would have happened. Though to be completely honest I think EQG and Rainbow Rocks did a better job of making her seem more human.