Replying to MSP OR ARV

I went to my local shop today to decide which ski i wanted this year. I have last year's AR5's in 176 and im looking at the 180 msp's and the 175 arv's. I want the ski to be a more of an all mountain/powder ski..i dont care which one is better in the park, i will use my ar5's mostly for park..which would u reccomend??? im leaning towards the arv's.......oh yeah by the way i ski east coast all year long but go out to salt lake city for a week each year..thanks