hondas?!?!??? Certainly not our integra.
Easiest to work on would have to be the early 1980s w123 chassis MB diesels.
The were designed for super simplicity, maintainability, and relatively good access. Once you grasp how ingeniously they put stuff together, you have to wonder why others dont do the same.
In terms of pure space, Id bet that the full-size pickups with the smallest engine option are pretty easy.
IMO, 4cyl gassers are far easier to work on then their V6 counterparts. For routine PM, my 91 BMW is tough to beat. Actually, my 04 saab is suprisingly simple too...
IMO, the most difficult PM item is the ATF change. Even if you have a drain plug in the pan, ATF still drips everywhere when you remove the pan. I really hate doing ATs, regardless of make... unless there is one that has a drain plug and a spin-on filter, like an engine does.
JMH