Owned and used hundreds of tractors over the years but my favourites seem to get less as tractors get more "electronic" and modern . Really hard to put in any kind of order but for one reason or another these have all stood out .
Versatiles 835-895 and 836-976
Ford TW series
Ford 7810/8210
NH 8340 / TM 120 ( manual trans)
JD 3650
MF 390T/3120 dynashift /2685
Fiat 110-90 turbo
JCB FASTRAC 1135
Renault 145/14
Case IH Magnum 7230
Fordson super major
Valtra 8150 , 8550 , T120
Leyland 272
Listing the bad ones or "money pits" would be easier .
JD 3120, JD 3130, JD 4030, JD 8630, JD 4450
Case IH 1594
Any MF combine 515,525,750,760