I personally prefer the font rendering of the lcd screens. Oleds even at 400+ppi do not look as smooth (at least to my eyes). Also not a big fun of burn in.
I agree, the RGB subpixel layout really gives better sharpness over PenTile at the same nominal PPI. I'm sticking with LCD phones as I really don't want to have to worry about burn-in, especially with several years of use.