You're going to have to evaluate based on your needs and budget.
FWIW, I am considering one and have narrowed it down to the reefkeeper 2, if I get one. I think it was slightly cheaper than the aquacontroller jr (basicaly the same features) but the reefkeeper software for computer connection is also free which is something I would definitely try out. They also have a new fancy one coming on their website. It costs more but sounds like a good deal for the features.
Digital Aquatics 2008
