I would opt for a Seneca II over all of the above (except maybe the Aztec), even though it does have turbos (which is not a bad thing at all).
4 blokes, full fuel no problem. SE ceiling of 13,000' and ceiling of 25,000'. De-icing available as is oxygen to get you above that icing.
Good condition ones are available at around $100,000 - $140,000 and they don't attract airways charges....
Not keen on the Seneca I, the Seminole is just a twin archer suitable for training but not sure I'd buy one (In my view of course), as is the BE76.....