If you look at the OT as a groove box, others might be better. But OT is not designed as a groove box. Sure, you could use it as one, but OT is way more than that. I am quite sure, those, who use the OT as MIDI-Sequencer, Drumcomputer and maybe FX unit and miss synths on the OT is the minority.
On top of that:
I am using the OT mostly for exactly that: As a groove box. Drums via samples, Synths sequenced by the MIDI Tracks and the other tracks for Mixing and FX.
I owned “them all”. Deluge, Force, Maschine+. I still own the OT.
The Maschine+ sucks (in my opinion) as sound source, if you want more than Preset-Playback. The Interface does not let you use the Synths for Sounddesign, as you are used to. The Force is way better in this. For me personally, neither the Force Arranger nor the Maschine+ Arranger made it for me. If I wanted to create a Song on a Timeline, I always switched back to a DAW, because arranging is more, than just placing patterns behind each others. And making minor changes etc. is way too complicated on both machines.
I didn’t like the Live-Performance-Features of the Maschine+ at all. Performing a song was not possible for me in a way I like it to be. You have to constantly change screens, and use the “menu” system to get to the parameters you want to change.
Force is quite better with it, but also has some limitations.
And the moment I start to add Synths and Midi Controllers to the setup, I can do the same with the OT + all the crazy Sample stuff it is able to do.
I never missed MIDI Tracks on the OT. I never missed Audio-Tracks on the Force too (also limited to 8).
Oh, and while I don’t think that I am 100% fine with the OT-Effects and the limitations of the Reverb OR Delay per Track, I was not happy with neither the Force nor the Maschine+ Effects.