Currently very strong NE winds (bise), so landing from the SW. Probably best views are starboard (right), though LHR flights tend to bank pretty late and you'll be quite low down. For take-off same applies.
If the winds change direction (the ratio between West/East winds is about 60/40), swap sides. This is the most favourable configuration as the previous poster has indicated as you come in over the lake with view of the Mont Blanc (if it isn't in the clouds).