I owned a F-30 and now currently a Rectoverb, so my comparisons don't exactly apply but perhaps useful to you.
Clean tones I actually prefer the Rectoverb, namely because of Pushed mode (which is pretty much an OD mode) but the F-30 was great as well. Even with only 2 EL84's, the F-30 had a very decent amount of headroom for pristine clean tones at higher volumes.
Distortion on the F series is much warmer than a Recto, but still has the classic Boogie menacing roar. To me, the tone fell smack in the middle between a Mark IV and the Recto line. Honestly, I miss my F-30 for a tighter high gain rhythm tone, where the Recto is bigger and a bit looser sounding. That said, the voicing of the F series' distortion wasn't very usuable unless I had Contour mode engaged; it was more of a fuzz/OD without it. Another downside, depending on if you're a tweaker or not, is the tone stack on CH2 isn't very responsive. It affects the gain structure rather than overall tone. It's a cool design, but in the end I simply needed more versatility. If I could have afforded to keep my F-30, I certainly would have. Awesome amps for the money.
For lead playing, the Recto in Red/Vintage gets the nod. The F-30 was a bit lack luster for leads.