David Tennant is good in many many things, not just Dr. Who.
He's also good in:
Ahsoka, Good Omens, Final Space, DuckTales, Jessica Jones, Just Cause 3 (Propaganda Minister), Broadchurch, The Pirates! (Band of Misfits/In Adventure with Scientists), How to Train Your Dragon, Extras, and many many more. Those are just the ones where my memory goes to when I think of his voice.
Ill add The Decoy Bride to your list. Its a bit campy but its such a fun movie, with a lot of quotable lines like, "im a lot hotter than I look", and "Griddle puffin? On a Tuesday?!"
Tbh the Capaldi Era is way underrated. Sure there are more episode that kinda miss in my book, but man Capaldi knocks it out of the park as the doctor!
capaldi is so great! matt and clara are my doctors and companions since i started watching in 7b and was a whouffle but i LOVED the way clara and twelve were each others emotional support :')
also thirteen deserved so much fucking better than the writers she got
Depends on what you enjoy from Dr Who. The specials with Tennant's Fourteenth were great for campy silly fun.
Capaldi's last season was great for character drama.
Ncuti Gatwa has just started as 15 and I haven't watched his opening special yet but I enjoyed him in Fourteen's last episode. Very similar to his character on Sex Education
I just recently watched every episode of the reboot. Yes, it's worth watching. I don't think it quite recaptures the feeling of the earlier seasons but it's enjoyable in its own right with a gem every now and then. Every single doctor has some great performances. I think the 15th doctor is going to see some seriously improved writing and storytelling compared to (most of) 11-13 too.