I really feel any canister if cleaned properly will be much more involved than a HOB filter. Between the long tubing that needs to be cleaned with a long wire brush not to mention the head, & fittings should be cleaned along with the impella , media baskets sponges , there is just way more work & surface area to clean & be concerned about killing your beneficial bacteria.
I would say it takes me 3-4 times longer to clean a canister. Especially trying to make the bacteria stay alive. I watch the temperature , & aeration while cleaning the filter which you would need to do with HOB filters anyway.
The HOB filter would get the edge in ease of cleaning compared to canisters. But thats the least of the concerns to me .