Depends on how early you go, and what the conditions this year are. Fat Dog (Cambie Creek) is well traveled so will be easy to follow, pleasant, low avy risk. Not none though, you have a few clues about avy safety I hope.
Another that comes to mind is the north end of the HSCT, up to Deeks Lake. Multiple day trips from there are possible, Windsor is nice. The rest of the HSCT is not well marked or travelled. Garibaldi Lake is nice, and not even Mr Bean could get lost there.
Late March/early April is still full-on winter above 800-900 meters. That is what you had in mind, right?