'Best' is a judgement call. One person's lemon is another person's ideal boat. For me personally, it would be the Westsail 28
Small enough to solo, but big enough for a family
. Strong and stable, looks good, keeps its resale value and it has a canoe stern.
Keeping it simple with a transom hung rudder/tiller, self-furling cutter
rig and a DECENT size engine
, it would (and has) take an ordinary guy, with common sense and a reasonable level of health/fitness anywhere in the world without Thurston Howell's wallet or Joshua Slocum's balls.
Also like the Pearson Triton 28
and the Southern Cross 28
The Westsail 33
is also a fine sailboat, but a bit too heavy to comfortably solo-sail and that might discourage a captain
from unload crew members who aren't working out.
But like I said, it's just my opinion.