well. first of all: which A20 is he talking about. cuz the so called "Boston" has only two things over the TBM: speed and durability.
the A-20 "Havoc" attack aircraft has suprisingly long range and a great gun package. it also has a 4k bombload it is fast and suprisingly meneuverable for it's size. but it is beaten out, in my book, by the mossie. which has higher altitude ability, better climb, speed, firepower and meneuverability. however! the A-20 has one quality that has kept it out of the AH scrapyard: it's durability. you can tell if an AH aircraft is tough if it consistantly looses both it's ailerons before losing it's wings. it is a very frustrating opponent to the Finnish hurricanes on FIN-RUS.
the TBM has better underside protection than the A-20 and has a bombsigt. it is great for CV based bombing missions, though people usually opt for naval fighters instead. for mid-ocean torpedo bombing, it cant be beat if it is attacking CVs without air cover. this is because it is far tougher than the B5N. however, if their are nme planes in the area, you cant go wrong with the japanese "Kate". it turns better than any plane ingame and almoast never stalls in the horizontal turn.
