I just received my set from tirerack and having it installed today. I was going to go with the Altimax in 185/60-15 on 15x6 steelies, but the rack couldn't get those to me in time (driving up to Lake Placid tomorrow, and they've already got 2+ ft of snow up there). So, I went with Blizzaks, but in 195/50-16 on 6.5" wide steelies. Reading through the posts here, I now see that most people with 16" run the 55 series profile, but the size I ordered is what was recommended on the rack's site (even though it's a bigger deviation in diameter from the stock set-up, at -.5" vs +.1" for the 55s). Oh well, will have to live with that. I guess the speedo will read faster now, than I'm actually moving? I wonder by how much?
For what it's worth, I've had both the Altimax and the Blizzaks in the past, and preferred the latter. The Altimax felt "greasy" on cold dry roads, and less than confidence-inspiring even at moderately quick pace, but was willing to put up with that given that they would have been $150 cheaper...