So, my turn to chime in. I'm 5'3" and 120lbs after Christmas food.
I own a 462 20" bar and have used it up in the tree while climbing and out of a lift. Its my limit for weight up in the tree. I would not want to be lugging it around for too long.
My full complement is all Stihl) 150t 12" with muffler mod, 200t 14", 260 16", 462 20". I'm not called the 'Acolyte of the short bar' for nothing, there is a shit ton you can do on trees up to 3x bar length with the right cut sequence.
Having said that, a nice long bar balance with the right powerhead would be nice for three cuts and done.
I had a 461 from new, then traded it in with only maybe 8hrs on it for a 462 after reading the endorsements from some here who cut a LOT of trees. Don't look back, lighter and cuts outside its pay grade. Read the instructions and 'tune and train' the computer carb properly the first time and wow!
I have also run a 262 and will buy one of those once I feel for some reason I 'need' to upgrade...its lighter and slimmer than the 260, but the 260 is still doing everything I ask of it so...