My group was talking about this the other day. In the game's current state (Wave 6 on does not exist yet) the X-wing is over priced. Why would you spend 21 points on an x-wing when 22 points gets you 3 more shields, barrel roll, cannon slot, system slot, and a (potential) crew slot!?! All that for only the cost of 1 evade die, no astromech, and a slightly more limited dial. (This is debatable because of the barrel roll).
No doubt, the x-wing will need to be updated after all of this crazy stuff hits.
With 22 points you'll only get a lot of useful empty slots :-D
I use to play Empire and i find the X's one of the bests ships in the game.