I've owned/beaten every Metriod aside from Federation Force and Pinball. I have to say that I really enjoyed Other M. I like it more than any first person Metroid, easily. If I had to make a list, the newer 2D games (Zero Mission, Fusion, Samus Returns, Super) would be first. Then, Other M. Then the Prime series. Older 2D games (Original, Return of Samus).
I think a lot of people hate Other M because they were told to hate it and never gave it a fair chance.