Northern California is like going into Baskin Robbins and asking what is the best Ice Cream?

Many different varities work better in heat, some do not. Some work good with minimal water, some do not.

There are awaaaaaay tooooooo many variables such as location (general area), elevation, available water (and quality of said water), type of soil, and the most important is the attention that said plants will be getting.

You should tell us the general area before you ask and the group can ususally make some great recommendations.