access to N/E/S routes will be season dependent based on when the roads melt out. the shasta climbing page will provide updates in the spring.
if bunny flat is your only option for TH access, then doing west face or a shastina/shasta combo is a great route.
if you're going early summer, then do hot/win from brewer creek. no false summits
but a little steeper than AG in the mid-section.