You really need to better define what you need to be able to do ie max pax + bags that must be able to be carried and over what distance and into what type of airfield, and then what you would like as icing on the cake.
Then do a spreadsheet of pros & cons for all 5 types you mention. TB20 & 21 are different w.r.t. engine turbocharing & cruise speed, Mooney 201 & 252 are similarly different.
Have you also considered some of Cessna's & Piper's single engine retractables too eg C210, C182RG, PA32R (Lance & Saratoga) and, considering that you have included a V-tail Bo, a Piper PA24 Comanche?
It may well be that a 6 seater like a C210 will better manage the range you need for the pax load, compared to a 4 seater. Having said that, a C182 has a pretty good payload/range combination.
Last edited by Tinstaafl; 24th Feb 2013 at 00:59.