I think the first three ('Runt', 'Ballad Of Todd Rundgren' and 'Something/Anything' are all singer/songwriter type albums though all have enough rock out moments to satisfy most classic rock fans. I like them all.
'Todd', 'AWATS' and 'Initiation' are all more heavily into electronics and some might slide them into prog. 'Todd' was definitely my fave for many years but 'AWATS' has probably passed it by based mostly on the strength of seeing three performances of that album. Side one of 'Todd' is perfection and side three is close behind. Side one of AWATS' defines mindf*ck and side two is mostly singer songwriter perfection and includes the soul medley and one of Todd's all time great rockers, "Is It My Name" followed by his concert closing anthem "Just One Victory". 'Initiation' sounds like Utopia because many of the musicians are from the first Utopia album and there are some other all star guests; Edgar Winter, Rick Derringer and David Sanborn. I think the 30 minute side two is very unfocused and simply noise in places. Side one is basically an iteration of Utopia and dovetails nicely with Utopia's first album. Five of the eight album sides in this era are essential in my opinion, two are pretty good and one is best saved for 3AM background music. This is my favorte era of Todd.
Side note, 'War Babies' (1974) by Hall and Oates sounds similar to 'Initiation' due to Todd and members of Utopia being on it. This album is a stand alone in the Hall & Oates catalogue and is a hidden gem for Todd and Utopia fans.
'Faithful ('76) is a mixed bag with side one being all cover songs. Tons of artists were doing this at the time including David Bowie, John Lennon and Bryan Ferry. I think Todd took a big swing and a miss here, I don't care for side one. Side two is pure gold as the song writing is reminiscent of Todd's first two albums.
'Hermit Of Mink Hollow' is a poor man's 'Something Anything'. I think Todd was just showing that he still had this side of himself while the band Utopia started showcasing the talents of the other members.
That's the first eight that you have if my math is right.
'Healing' is good but not great and certainly more electronic than his previous effort and certainly not a pop record.