Jan Akkerman is one of the greatest guitarists that few have ever heard of.
A few more suggestions that had both Top40 cut-down versions and long, extended versions...
I Don't Need No Doctor---Humble Pie
Roll Over Bethoven---ELO
And some more that were strictly FM ("...WMMR, Philadelphia...THE radio station..." ...as the promo said...)
Glad---Traffic
Had to Cry Today---Blind Faith
Peace of Mind/Fruit & Icebergs/Honey Butter Lover---Blue Cheer (I had the album version where they rolled right onto each other...)
See My Way---Bloodwyn Pig