I guess it's OK as long as you're not completely obsessed. I have a crush on Silver and I always have. (:XD Vote me in as best answer and I'll be sure to return the favour!
Its fine,its okay to go through a phase and have a crush on them,but when become extremely obsessed(like screaming over them,fighting over the characters..yes I've seen it happen,claiming that your in the sonic world and that either Sonic,Shadow,or Silver is yours forever and that you'll do anything to stop people that like them)That..kinda seems like あなた have a problem,and I hate it when extreme fangirl will curse anyone out if they don't like Sonic,or think he's cute.Stupid stuff like that really makes me mad.
mmmmmm..... hard one but it's okay if あなた are not obssesed of course あなた can like them and have a お気に入り and even a crush okay i admit it i'm obsssed with sonic so what can i do?
Sure, its OK to have a crush on any of them, i think it becomes weird when あなた are extremely obsessive over them, a bit like a stalker. Ive had a crush on Silver for a whike now and still do, so u should be fine.