I will vouch for that OLED screen on the RH10. It's one of the best things Sony has done for MD since going PCM and upload functionality. I have had several MDs and also have a RH910 with my RH10.
I will probably go for the RH1 but will keep my RH910 since you can read the LCD in the daylight which is much easier to read in daylight than the OLED but in the dark the OLED is da bomb.
But, on the other hand, I do have a 3 line remote RMC 40ELK that displays dual channel record meters when in record mode. Maybe I should just keep that to use with the RH10 in the daylight, yeah, yeah that's the ticket!!! OLED rocks!