I haven't been on a 744 in ages, SQ phased them off all the routes I usually fly in favour of the 380 (LHR, CDG) or 777 (ditto), or now a 340 of some sort (KIX). They haven't used a 744 on any route in SE Asia I've flown since I cannot remember when. Sad really because I would chose one any day over the 380.
edited to add - a quick check of their website reveals they have 9 left in the fleet so they must fly them somewhere!!