I haven't really researched the price or the included accessories, so I
can't be a strong advocate one way or the other--and I also really like the
O-235.

However, Continental has been positioning their O-200 as an LSA powerplant,
with 100 HP and a stated dry weight of 170 LB. That's enough lighter than
the O-235 to make a serious look almost mandatory; and like the O-235 it
permits you to idle at a low RPM, both on the ramp and on the approach.

Although trivial for the LSA category, both the O-200 and O-235 and
qualified for night and IFR when equiped with an appropriately approved
propeller. .

Peter