on a more serious note the routes in the Bugs are not notably longer or harder than routes in the Coast Mts and Cascades, just in a glaciated area at high altitude. dont make the Bugaboos your first ever alpine climbs. before you go, climb a bunch of local stuff like:
East Ridge of Rexford (except the Bugabbos wont have tree climbing pitches)
link up of the two Nesakwatch Spires by any routes
West Ridge of Matier
NW Ridge of Joffre
Lillarete on Athelstan
west face of Overseer.
east ridge of Alpha
standard route on Tantalus
south face of Viennese or south ridge of Grainger
any ridge of Forbidden in WA
Then when you go to Bugabbos be prepared for less of the "alpine" mystique like loose rock, long approaches, stinging insects, and more pure rock climbing (with thunderstorms and rockfall and glaciated approaches and snaffles)