Which was the first Sentai to have CGI mech battles? I always assumed it was Gaoranger, since the pre-transformation mechs are all CGI, but I've since found out that wasn't the case.

I always assumed it was Timeranger, since that series was rather CG heavy, from what I heard.

Edit: I kind of answered my own question here, so disregard.

What is worst Sentai Show that have much better Power Rangers

I heard Go-Onger wasn't beloved by Sentai Fans because they don't like the goofy stuff but their Power Rangers Counterpart, RPM was more beloved than Go-Onger because it's Mad Max meet Power Rangers

I heard many people was very upset when Samurai established RPM as Alternate Universe and only have 1 Ranger but he never took off his mask

For Best Sentai Show but have Much Worse Power Rangers

Power Rangers Samurai wasn't great as Shinkenger because Copy and Paste Shinkenger into Power Rangers Samurai!

There is a lot of Sentai shows that I feel like was great, but had a worst PR version like Carranger/Turbo, Gokaiger/Super Megaforce, etc. I did enjoy Magiranger over Mystic Force and Zeo over Ohranger (I could not get into it. Maybe a second chance will help). I did like Zyuranger, Dairanger and Kakuranger over MMPR Season 1-3. To me, MMPR has aged like milk. The show is bad to watch again despite me having a lot of nostalgia for it. Even without comparing it to Sentai, I still find MMPR to be bad.

I don't think anyone was upset at RPM being an alternate universe. It would be impossible to fit in otherwise.

Are there any Sentai that you thought was worse than it's respective Power Rangers season?
A lot of people tend to find any given Sentai superior, so it's nothing new. I'm most curious about the first question than the second.

I didn't like Go-On, so RPM.

I found Magiranger a bit boring, but I didn't mind Mystic Force. granted, I haven't seen it for years, but I watched it to the end.

I thought Dino Charge was enjoyable than Kyoruyger. I also did like Kyoruyger too. I also thought RPM was better than Go-onger. Go-onger was way too campy for my taste.

From what I've seen

MMPR Season 1 over Zyuranger
Carranger over Turbo
Megaranger over In Space
Lost Galaxy=Gingaman
Dino Thunder over Abaranger(by a close margin)
Boukenger over Operation Overdrive
Shinkenger over Samurai

I haven't seen much Post-Zyu or Pre-Zyu sentai in general, but yeah.