Kind of white and cold, much the same as Pamporovo
Seriously, like any climate in the world it is never the same 2 years running, but you will be unlucky not to find perfect conditions at that time of year.
I really would'nt think so Tom. As Whistler is considerd to be on of the premier ski resorts in the world it would be like comparing a Rolls Royce to a Ford!
Bulgaria is an eastern eurpean country if you go expecting it to be like Canada then boy are you in for a shock. But if you go with an open mind then you will have a great time.