2200wrms may be a little much if you use it incorrectly and if you were actually feeding it that. The >2000 that the XXX will be able to see from that amp should be ok as long as you dont act like a silly n00d.
The difference between 1800w and 2200w will basically be all but audible. Of the two I'd just go with the 1800w, or just pick up the 1500D like everybody else.
id get the bigger amp more potential...just dont be a dumb *** with it and for example throw the bass eq on the amp all the way up...you would be able to upgrade if you ever wanted to with the 2200