I'm having a terrible time deciding what phone to upgrade to because I've been using a Samsung Galaxy S for a year and a half now and it's showing it's age.

I just really want a speedy phone with a good camera which can take photos instantly and take HD videos plus has a good screen (4'5+) and be on jelly bean :) but I've heard the one x has a wifi bug so I am unsure :/

any help would be greatly appreciated :)