I think I need a new battery, What do you people think? Options

[Blackcelliman]

Well, I pretty much have it down to the battery for my current problem. Here's the things that have been happening to me recently...........

- Car was parked and left running for about an hour, then I turned it off. When I went to turn it back on shorty afterwards, it started, but hesitated to do start.

- I had my hazard lights on with the car turned off for about a half hour and I turned her on and she hesitated to start.

- I left my lights on for about 20 min and it totally killed my battery.(Aren't lights
suppossed to last a bit longer than 20 min with the car off?)

It seems like I do alot of weird things to my car, but I drive fulltime for Domino's Pizza and I sometimes get back from a delivery and just leave my car running before I go back out for another one. Anyway, once the car is started up and I'm driving around, I have no power loses, so I would think that would eliminate the possibility of my alternator going. What do you guys think about this? Battery or Alternator?

By the way, what are some good batteries out there. I've had an Interstate battery ever since I bought the car and that would mean that it's been there for at least 110,000 miles. I've heard that Die Hard is pretty good too, but I've never bought a battery before. I'd appreciate some help from you guys. Thanks