Replying to New skis

I've been on my Mothership 182's for like 4 seasons now(The bright green ones with pink bases), and its time to upgrade. I definitely want some fat skis, and I loved my motherships, so I don't think I can get anything smaller. I would like something that is maybe a little snappier in tight trees though. I'm 6' 170lbs, and ski pretty aggresive. These would be my only skis. My choices right now are prohet 100s, (179) rossignol s5 BC (178). any better advice? price is something to think about, but I'm planning on having these for another 5 years, so not a huge deal.