I can't comment on Rob & Brennan because I haven't seen TAR1 fully (I've always been meaning to watch it, but I can never seem to find the time!)
I'll talk about the others though! 
Blake & Paige are one of my favourite sister/brother teasm of all time! I really love them!
John Vito & Jill are right up there, definitely in my Top Ten of all time! Really, I'd have to say they are my favourite male/female team of all time aside from Flo & Zach.
I really liked both Millie & Chuck and Kris & Jon. Neither were my favourite team from their respective seasons, but nonetheless I liked them both.
Tyler & James I really don't like though.
I'm a huge fan of Lorena & Jason! There are very few teams who I like more than these two when you compare all the teams who never got past Leg 4. Very likeable!
Amanda & Kris were likeable enough for me, but we sadly didn't see enough of them in either season to get a really good view.
Mika & Canaan were likeable too, although Mika not going down the slide was the most ridiculous thing ever.
Jordan & Jeff are amazing! So, so funny! One of the best TAR moments ever is when Jordan was talking with her mouth full of baguette and the subtitle said '? ? ? ? ? ?'
Jill & Thomas I have mixed feelings about. If they were racing on a different season, I probably would've really like them. But on TAR17 I absolutely loved Nat & Kat and Brook & Claire so I couldn't cheer for them.
Andy & Tommy I really liked! I don't say that too often about alpha-male teams, but these guys were an exception! They deserved to win TAR19 instead of Those Who Shall Not Be Named.
Elliot & Andrew seemed likeable enough, but once again they were gone too early for me to get a better perspective.
Now I'll talk about some of the teams you don't like. (Turns out we do like a fair few similar team!
)
The Guidos I never saw on TAR1 but on TAR11 they were not that exciting. I desperately wanted them to beat out Eric & Danielle, but other than that, cant say I particularly liked them.
I really do love Oswald & Danny though! Perhaps my favourite ever male/male team, along with Derek & Drew.
Teri & Ian I liked to some extent and sorta disliked as well. Hard to explain.
I liked Monica & Sheree, and hated Reichen & Chip a lot.
Jonathan & Victoria I absolutely LOVE! I think I might be the only person on the planet who would say that though.
I just love them!
Not really a fan of Susan & Patrick or Lynn & Alex. Didn't like either.
The Paolos I found very entertaining! But I preferred heaps of other families, like the Gaghans, Bransens and Godlewskis.
I really like Ray & Yolanda. I really hate both Eric & Jeremy and BJ & Tyler, so Ray & Yolanda was who I was cheering for from the start, but sadly they fell behind.
I liked Azaria & Hendekea a lot. Another one of my favourite sibling teams. I think they would have won TAR12 is it wasn't for the flight screw up. They were definitely the strongest team there.
Justin & Jennifer I can't comment too much on because they didn't get much screentime aside from a fight in Indonesia. Didn't dislike them, didn't love them either.
I really liked Nary & Jamie. ARt & JJ have got to be one of my least favourite teams ever.
OK, so we've discovered a little bit of similarity there! 