On Aeroflot's A310 flight, you should get good food and service. I think Aeroflot's intra-European flights are up to the same standards as any other carrier on those routes. I know they are better than SAS, for example.
As far as SVO II, it's not much to look at - very dingy and dark, but interesting to walk around. There are really no areas where you can see planes taking off and landing, apart from an upstairs restaurant. You can order food (which takes awhile to be served) and sit and watch over the balcony through large windows looking out on the runway. I don't think you can sit near these windows on the lower level, though, because they are back near the jetways, which are not accessible unless you're going to get on a plane.