When I first heard it, I couldn't get into Rain City at all, but over time, it's become my favourite on the album. Something about the atmosphere that that song creates is so unlike everything else that Devin has done that I really enjoy it. However, overall, Sky Blue is an album that I rarely come back to - there's a few really great songs here (Universal Flame, Rain City, Before We Die), but there's also a couple of songs that I don't care for at all (Rejoice, Sky Blue) so it often falls to the wayside when I'm in a Devin mood.
In other Devin news, Transcendence has held up really well. Still not a huge fan of Transdermal Celebration and Stars, but the rest of the album is top notch. Offer Your Light, Secret Sciences and Higher are some of my favourite Devin songs at the moment. The bonus disc is also really good and definitely something that I'd recommend to anyone - Gump and Monkeymind I probably prefer to anything on the main album aside from the three songs that I named earlier. If you switch them in for Stars and Transdermal Celebration, then the main album might even make my Top 5 Devin albums or at least come mightily close, and that's no small thing.
Terria is still the best them though, and I highly doubt that that will ever change (though I'd of course love to be proven wrong on that one).