A lot of the melodic content on Reso's Ricochet album as absolutely fantastic. In particular, "Coming Back to You," has a IVmaj7 chord in it, which although sounds pretty simple since all hes doing is augmenting the 7 from an F to an F#, it sounds utterly sick. Aqueous has some amazing suspensions in it also, though I've never taken the time to sit down and figure them out.

Coming Back to You: https://www.youtube.com/watch?v=DbyKPzYG6Ik
Aqueous: https://www.youtube.com/watch?v=Gsq6WHzi87Q