I notice Dan singing more every album.
Me too, his voice is getting more distinct too. I remember the first time I heard "Come Home Andrea" and was taken aback. He told me once that he wrote just about all of RRP3 but gave it to Ryen to sing. I think his voice started to really shine on DDD.
Yeah I remember when Dan would do harmony on some songs and it would be all high pitched and weird, but then yeah, I do agree he came into his own and has a very distinct voice now.
Basic DifferencesRyen: more of a gritty, grungy type of whiny-ish voice
Daniel: more of a smooth, schooled-type of voice, bigger range, I think
And I think the bonus video on the STOTBL cd, where they're playing "Gameover" is the first time I noted Dan's harmony to be a lot different than the old really high-sounding vocals..like in the "2P you take my control, teach me how to rock & roll" you can really hear it.