Personally I am a 1911 and Sig fan, and all the guns mentioned above are all decent guns, I have at one point or another owned and enjoyed them all, but none of them are really underrated, they are all well north of $500.00 and you are getting what you pay for, but I have also been doing this for over 40 years and in my very extensive and vast experience I have to say that the most underrated guns available have to be the Norinco range, all cheap, all well reverse engineered clones of the originals, and all of them work well, they go bang every time, the more you run them the better they get, I have a couple that are nicely broken in that shoot circles around my SIG's with ease, I dumped all my custom $1000.00 plus Glocks and CZ's (But Not My SIG's) and have been using Norc 1911 TT Sport's, NP22's, 34's, and NZ85's for about the last three years, they are working so well that I don't even touch my high end guns anymore, 1911's, NP22's and DA762's are all giving me good center mass groups at 50 plus meters and with no FTF's or FTE's after hundreds of rounds down range on a days shoot, they take the beating and spare my over priced SIG's and 1911's the hammering I put them through, so reliable are they that if we were carriers, one of them would be my go too piece, they have to be the most underrated guns on the market, but that's just my 2 cents worth.