? Best batteries for long lasting Amp Hours ? new and searching for the best choice.

[Wired]

We are looking at the Trojan L16RE-B battery...
Also, I want to find out about the Crown batteries, too.

[Naptown]

if a 12V system do not put 2 12V batteries in parallel go for the 6V in series.
either way you end up with a 12V approx 200AH battery bank.

[Eric12325]

I bought a 200 watt solar panel system from Grape solar ,I can add 2 more 100 watt panels when needed. It comes with a C35 controller and a 450 watt inverter by zantrex , I am using 2 UB12350 batteries from my Moms old scooter now and they work well for keeping 2 lights on and my computer all night long ,I live in Pittsburgh PA ,a cloudy city.

I am asking advice on the best batteries I should invest in ,6 volt 210 AMP HOURS , or 12 volt that seams to only have 100 AMP HOURS ?
I ask for any advice that will help me make the right choice ?
Thanks
Eric