At one time, I was a fan of the Optima but, in my opinion, since Johnson Controls bought Optima, the quality has decreased. The last Optima I installed was truly my last. It failed prematurely because of just the situation of which the Optima is supposed to be more tolerant--deep cycles.
For the last couple of years, my choice for a high-end battery that has outstanding durability is the Odyssey. I reviewed it here on the CAC a while back. I have them in all my cars except my C5 and, when that car needs a battery, I'll go with an Odyssey for that, too.
See:
Extreme Battery - Corvette Product Reviews