"2 AM" is indeed a bit similar to "Wasting Love". Very nice tone and a solo I imagine Janick played while dancing around in the studio... All the strong notes are placed firmly on the beat, making it lock in with the rhythm and reinforcing both as a result. Makes the solo stick in my head, at least.
"Wasted Years" is my second vote, a given one really. Still not my very favourite solo on the album, but a very, very good one nonetheless. Could actually be my second favourite Adrian-solo... I love the end to the album version, with the solo continuing on during the chorus and ending with a very wide vibrato, something which haven't translated to the live performance.
As for the two that didn't get my votes, I have always adored the way Adrian starts his solo in "Long Distance Runner", but from there on it is sadly a big letdown. Never been a fan of the solos on Seventh Son, and "Clairvoyant" is no exception. It has as much to do with the backing of the solo as anything else. It's just not something that has a satisfying balance of tension/release on its own - the release comes from the section after, that we enter just as the video cuts.