If the gully is unsafe due to snow conditions, which is sometimes the case, or if you simply want a gentler alternative to this gully, the slopes to the north (left) of the gully and surrounding cliffs provide a nice option. These gentle slopes may be a little longer, but can be more practical in certain situations, especially for descent.
The west gully route usually does not hold much snow in winter. Avalanche danger should not usually be a major issue unless there is recent heavy snow, so bring avy gear as needed accordingly. Snowshoes or skis are all but required for this approach which can be alot easier in the winter.