Wow, I think we have a triple crown club here. That's great. However, I think any of the three that Ramon mentioned .. Devil's Mountain, Terrible Two, Mt. Tam .... is chewing off more than I can handle.
If I was to do the triple crown next year, I would do the same three as I did before ... Solvang Spring, Davis, and Grand Tour Highland Double. Now if you are really interested, they have a Grand Tour Triple Highland.
Other good ones are:
Bass Lake
Eastern Sierra
Knoxville
BTW, age doesn't matter. Have you seen the age of some of the triple crown winners? Average age is somewhere in the mid-50's. My friend Clem, down in SoCal, is 71, and he's done over 50 of them.