Hi guys. Newb here. I've been cross shopping the gla45 and the Audi S4. This is going to b my every day vehicle. I'm in WV. So I need the AWD for the winters. I ski, hunt, fish, golf etc. so I need a well rounded vehicle. however that's prob only 25% of my use ... 75% being everyday commuting. I really prefer the Audi interior quality and fit/finish quality over Mercedes. But I just love the looks of the gla amg and hatch qualities. The gla also has more seat room for adult sized passengers in the rear. Performance wise they r both monsters in their own way. I'm not sure how winter/snow performance will b in each. I read the Quattro AWD system is superior to the 4matic. But imagine both would do well in snow and ice with proper winter tires. Does anyone here have any opinions, thoughts, preference on the two? In addition I'm getting a nearly identical deal on both cars... So price point is even.

Thanks guys!

Did you look at the SQ5?

I've looked into it. Just can't find one anywhere near me to go check out or test drive.

Both are good choices. I'll give the slight edge to the GLA45 due to its versatility as a cross over. If it matters to you, the GLA is a newer style vehicle, whereas the S4 will be refreshed in 2016.
Fair warning, once you get in your first AMG, you're hooked for life.