As said, raising water level to be near the return should help the noise of flowing water, if it's something else, cleaning the impeller/lubing it with vaseline (plain, unscented) can help. Personally, I despise the biowheel filters. If it were me, I'd use something pretty similar (maybe even the exact same) to what I have on my 55: AC 70 (AC 110 if I upgraded for the extra 20 gallons of volume) HOB filter and AquaTop CF400UV (CF500UV in addition to/in place of AC 110) canister filter. The only time my AC 70 makes much noise is if the water level is too low or if the sponge is clogged and water is dripping (like it currently is, and I just haven't had the time to clean it since Tuesday, and is why I run two filters, each capable of filtering my tank) out relatively slowly. Canisters are typically pretty quiet. The only time I hear noise other than a slight hum out of mine is if I get air in there, but if it's properly primed, that just doesn't happen.
I'm not sure if there's a difference between an internal canister and an internal filter, or if the latter is simply people shortening the former, but I'd imagine they're pretty quiet by design. They just tend to not filter as efficiently, as I understand it. Undergravel filters are regarded as not being good with rooted plants, if that's an issue, and can be reversed to blow water up and through the gravel instead of pulling it down and into it. I don't feel they're as efficient at mechanically filtering the water, because the detritus either gets pulled into the gravel and needs to be vacuumed out, or (in the case of a reverse set up) blown around the tank until it finds a calm enough area to settle. At least, that's what I've seen, and that could just be the result of poor installation.