I have:
I real, just straight-ahead Sigma D-18 (nothing to really write home about, but it hasn't lost anything since I got it 25 years ago new... hasn't gained much either)
... and a Martin D-16H, that just pounds. I bought this new many years ago, and have had the nut and saddle replaced and use brass string pegs. Never much liked the tuners on it but am really spooked to replace those, the sound is just right for me.
(btw, Zign, Wayne Charvel lives up here in my neck of the woods, and still makes guitars. Look for "Wayne" guitars)