"Oh yeah, most Mexi Strats suck, but I managed to get a great one out of the bunch. It blows the Custom shop I played out of the water!"
"I must've got one that was super resonant."
Or a recent one:
"I just cannot believe how good it sounds. Each note fuckin' sings and makes your ears tingle. There isn't one situation where it doesn't sound fucking unreal. I played about 20 Les Pauls and this one, far and away was way better than all the others. I dont actually know which specific model LP it is. It's an 08 and it's a Standard, but it's got the 50s neck on it and it certainly doesn't feel chambered. It was reduced from 5.5k down to 2.8k (HOLY SHIT!) and all the 08 standards I saw went for about 3.5k. Either way, this guitar is just unbelieveable and the only time I haven't been playing it is when I've been taking a picture of it or when I've been sleeping."

I know that there are duds out there, and sometimes there is one guitar that's just a little bit better than the others of its same model. But I find it very hard to believe that almost everyone has 'the best' guitar of their particular model.
I have played many, many production-grade guitars in my day. Numerous Les Pauls, Stratocasters galore, tons of Telecasters. Some sustain a little bit better, some play nicer, and some are lighter or heavier, but the reality is... A guitar is only as good as the components it's made out of. While some pieces of Alder or Mahogany might come together more 'nicely' than others, things like hardware and pickups are essentially the same across models.
I am not deluding myself into thinking that I somehow picked the best guitar of its type the day I bought it. No, I picked it because it played nice, sounded good, was at a reduced price from list, and was in the color I wanted. I don't gush about how superior it is to others of its make and kind because... I've played others of its make and kind. And it's similar. Maybe not the same, but very similar.
After all, when you buy a Strat, wouldn't you want it to sound like a Strat? Sometimes the 'weakness' of a guitar is what gives it its unique character and sound. Part of the appeal of Mustangs, Jaguar, and Jazzmasters is their relatively short sustain and quick attack. Having one that somehow 'sustains' more would be a deviation from their expected value, for good or ill.
Does anyone else think guitar-related hyperbole is out of place?