Which model Bobcat? Or all brands? So much depends on what task you're doing.
For instance, it's so much easier to pull an engine on a 743 than a 753. Pulling a control valve on a 753 is much easier than a 743.
For basic maintenance, on all brands, IMO Bobcat, hands down, on the post-B's.
The S185 or 205 with foot pedals is my sweetheart to work on, for new Bobcats.