If purely taking pacing into account, the manga for all arcs except the 21st and Pilaf. If you're going by enjoyment, though...
Pilaf - I'd say the manga due to better art (1986 animation can't really keep up with a professional mangaka's artwork that ain't Togashi's or Lynn Okamoto's). While I do appreciate giving the Pilaf crew more of a role early on, it doesn't really add much more to the series and the fights being animated doesn't really contribute much to the show at this stage in the game as the focus hasn't fully shifted to martial arts.
21st - Probably the anime. While I disagree with some of the filler that was added like making the tournament multiple days long (although from a real life perspective, that's probably for the best so fighters can have more of a break between fights), which later compounds in the problem of the tournament being stated to be less than a day long in the Boo arc, I think overall the anime added to the manga here.
RRA - The manga for me. I've never been a fan of either arcs, but shit like Goku being completely complacent that Taopaipai, a guy that stomped him before he climbed the tower, also climbing the tower is aids and Black is as much of a dribbling retard in the anime either way when he magically thinks he has a chance against Galu after the latter solo'd the whole army after making short work of Taopaipai.
22nd - Anime. Although the final fight between Tenshinhan and Goku could've been shorter, it did improve upon the manga by showing Ten's change in character better in that he was willing to give Galu free hits to make up for Chaozu's intervention.
Piccolo Daimao - Anime overall, but some of the Tambourine filler was painfully stupid (him meeting Yamcha and the others comes to mind.)
Piccolo Jr. - The two versions are basically the same, so the manga by virtue of lacking the wedding dress filler that makes Galu look incompetent for not being able to put out that flame and it retroactively breaking the logic of the Boo arc because Galu is able to interact with Gohan after his one day in the living realm was up.
Saiyan - Tie for me. The manga is better for a quick grasp of the story, although the anime does add some stuff to the 1 year training. But it also adds garbage filler like Arlia and the orphans filler which I never liked.
Freeza - The manga easily. Between creating more plot holes by removing Zarbon telling Vegeta Freeza can transform, the bad animation in general and the addition of many retarded scenes like Ginyu throwing a fucking boulder at Galu and the Freeza fight taking over 25 episodes, the manga incises out the anime by a long shot here. That's not to say I didn't enjoy some additions. Nail having more fighter-type allies and them being one-shotted by Freeza's breath was a good addition. Freeza's final transformation seeming to break the fabric of reality around Namek was a good addition showing he was truly top dog. It's just most of the filler serves to ruin the story rather than add to it.
Cell - Anime at least removed the 20/19 naming plot hole and made that retcon at least somewhat serviceable, although it also damages the pacing by adding in many unwanted filler scenes that break internal logic including Kuririn headbutting the shit out of 1st form Cell, Gohan going SSJ2 in the Rosat despite not even having mastered SSJ yet, and so on. Even still, it made the ending of the Cell arc which was somewhat nonclimactic in the manga very climactic, so if you're watching Kai with some of the fillers cut out, the anime is the better choice.
Boo - the manga is the objectively better one due to better pacing and more coherent power chains outside of
's incompetence reaching critical mass as soon as they got in the spaceship and Kibito forgetting he saw SSJ2 Gohan. I did enjoy the anime more though because the manga's art sucked ass around this time other than Ultimate Gohan vs. Boo/Gotenks Boo and SSJ3 Galu vs. Fat Boo/Pure Boo.
I'll post about which arcs I liked better in Super in a later post.