no matter what canister you choose, i'd be keeping the hob filter on the tank too. this way if one of the filters conks out, you aren't left with the equivalent of a huge fish bowl and rising ammonia levels. i always run two filters on any tank larger than 10 gallons.
i'm partial to the Rena XP series canisters, but that might just be because those are the only canisters i've owned. they work great, are quiet, easy to set up, and the square media baskets give you plenty of flex when it comes to using custom media (as opposed to what the filter manufacturer tries to sell you for too much money!).
