From Whymper Saddle, the ridge to the summit is narrow and loose. The base of the ridge could possibly be avoided by traversing either side from the saddle then using a snow lead to regain the ridge. The easiest descent is probably the West Ridge.
A beautiful climb, especially when it comprises snow instead of rock. From the Murchison Névé, gain the col between Mt Aylmer and Graceful, then follow the narrow ridge over a small sub-peak to the summit.