Love:
BAe 146 - the last pilot's airliner before automation killed all the fun;
FK27: well harmonised and a challenge when stuff went wrong - you have to love the pneumatics;
BAe J32: when empty, like a little sports car (particularly with water meth);
Siai Marchetti SF260: You'd swear you were in a jet fighter (and could be if you had the TP);
Tolerate:
Various Boeings and Airbii: efficient, but soul-less
Shorts 360: Only the Irish could design the systems on that one - the fuel tanks live directly above the cabin;
Grumman AA5B: much better design than equivalent spam-cans;
Piper Arrow and Seneca III: just feel solid, if unexciting
No thanks:
Any C152/172/182: utlilarian to say the least