I'd probably do Magic and Stamina, because don't breton's get a boost to magicka and or spells? Templars have some beefy spells/heals/shields you could pair with that bow.
if you plan on no spells then stam/health obviously.
That's what I did. I respect my vr and it's working g great. Now all I have to do is get a full set of med. And a better. Bow. I'm just playing around with the skills right now but it's still working out. And I'm a ww. So I get extra stam from that too.