One of the best guitar riffs in trance track i've ever heard -> Danjo & Styles - Duende 2008 (Danjo's Kanova Guitar Remix)
Also, Ronny K pres. EOYC - Morning Light (EOYC Anthem) (Intro Mix) . The guitar is more in the background (like after 6:00), but the melody is absolutely epic, powerful and touching. Also, you might check Original Mix as well.
This song was stuck in my head for the past week and I was struggling to remember what it was, thanks for posting Aquinox as well as OP for starting this threadArmin van Buuren / Gabriel & Dresden - Zocalo