I have flown both,like so many aircraft it depends on what you want from it, avoid the Seneca1 unless you are only going to carry light loads, 2 & 3 are better though IIRC you need to watch overboosting on the 2 and the Seneca is better fo pax entry/exit into the back and easier for loading large or awkward loads, overall though I would go with the Aztec D or E.