Hi:
I've instructed in cherokees, warriors, saratoga, lance...t tail and low tail, turbo and non turbocharged.
arros, archer and the lot of them (though never the dakota/pathfinder).
I would stick with piper. Retractable gear is nice, but more expensive and comes with constant speed prop ...just more mx (that's maintenance to you brits)
Look at the Archer...20 more hp...a bit more useful load but very similiar to the warrior...bigger cowling so a bit different view but ok.
The saratoga is a very nice plane and if you can afford it, I would easily go for a non turbocharged saratoga with retractable gear...fly over the alps and get a turbocharged one.
very docile and capable plane.
I hate the Cessna 210...I've flown it and it sucks
The mooney is a nice plane but really too small to be comfortable ( I am six foot two inches) fast but not really for me.
Bonanza is nice, but not really worth the money.
I would stay way far away from the T tail lance or arrow...a bit harder to handle and not worth it...though they are cheaper because they aren't as gentle .
fly safe...