Plan on purchasing Bridgestone Blizzak WS60's this week to put on my 06 MC which has 15" holies... just curious as to the correct size to buy since they don't come in the EXACT 175-65-15 size. Also, wanted to know how other drivers liked last years' WS-50's. I have totaled one car in the snow in VT a few years ago so I am a paranoid driver in the snow and want the best snow tires $ can buy! Thanks in advance for your help!

 

You could use either the 185/65/15 or 195/60/15 size Blizzaks.
The 185s should be a tiny bit better in the snow and ice and a tiny bit worse
in the dry, but the difference would be small in any case.

I have the Michelin Pilot Alpin PA2 tires in 195/60/15 on my 15" holies now,
and 185/60/14 Blizzaks on my wife's VW Cabrio.

 

cristo is correct, both would work. I'd recommend the 185/65/15 size. I think how a snow tire performs in snow & ice is way more important than its dry road handling.