I’m still looking for my next acoustic. Finding an electric is no problem because most manufacturers produce a modern C neck that’s about 42mm at the nut with medium jumbo frets. Acoustics often have fatter necks, a rosewood fretboard (I prefer maple) and small frets. Another problem in shops is that the guitars invariably have heavy strings on to make them sound better but they are horrible to play if you bend and do pull offs.
I tried some acoustics recently:
D28 nice folky sound but the neck is fatter than my Teles with frets that feel like they have been borrowed from a 100e guitar.
3 x Yamahas (the expensive ones with the passive pickups) the necks all fatter than I like but the dreadnought sounded very nice. One to try again.
A few Lags, none pleased my ears
Some obscure American brands (sorry Google isn’t helping), one 600e dreadnought pleased enough for me to want to go back and try it with my amp one day.
129e Black Fender – a real WTF moment. The neck felt good apart from sticky varnish that would require a bit of wire wool. Sounded OK in absolute terms and astonishing for the cash. The more expensive ones with a pre-amp were less convincing.
Current guitars are an Epiphone ej 200CE bk (see stevemuzzy above) which required work on the bridge and frrets to make it playable but has a neck that feels like a Les Paul. It beats all of the above for playability in my hands and sounds nicely Oassis. An old Sigma Martin: the neck is a fat V, the frets are too low/worn and the pre-amp hums; sounds nice unplugged, plays lousy, I should bin it.
Spend some time trying, take your own amp, ignore the brand names, ignore the price tags and buy the one that’s really easy to play and sounds the way you want. Get the salesman to play it so you can hear it from the front too.