12V Replacement Battery Suggestions

I had bought a Walmart special a year after getting my hybrid, it came stock with an Interstate, both were still working 7 years later. The only difference I noticed other then a slight Ah edge to the Interstate was the Walmart required a good deal more maintenance, requiring more frequent water additions. The caps on the Interstate fit much tighter then the WM. If you are decent at checking it, go for the cheaper one.