They are all awesome characters... I pag-ibig them all. Well I can help u how to eliminate other two but it is your call on this. The only thing u can do is see with your height, breasts and if u look little like them. For height u know already, First Haruhi, then Shana and Rika in the end. As for breast it is the same... I know I didn't helped too much, bcs I pag-ibig all of them. Well as for me I like Haruhi first, then Shana and in the end Rika... as for Rika u could always steal kusina knife. xD
Here u go some cosplays from cosplay goddess Kipi of Haruhi and Shana, couldn't find nice pic cosplay for Rika...
link link link link link link link link link link Hope I helped it took me one oras to find and write this... -_-''