Whistler: Where to ride? how is it?

Well there's lots to choose from!

Thou you already been there Brandywhine is probably your best bet, as far as access, ease of parking, grooming and finding your way around, oh but it'll cost ya $20 a day per sled to ride, for the trail fees to the old guys at the bottom! Unless that is you can hook up with a local rider or two, then I'd be pointin ya north toward Pemberton, that's mostly for the climbing.

Offer beer and/or fuel and see what that shakes loose for a guide for the day!