Tegu all the way! 
No im bias. They are pretty similar personality wise so you will be happy with either as long as you work with it. I love tegus. Mines has so much personality. She has fits and is always sticking her nose were it dosen't belong. She's like a little kid. but she is really sweet and will sleep in my lap while im watching tv. Ive seen savs just as tame too. The thing about tegus is it's easy to find cbb animals which makes the health and taming thing sooo much easier on you.

No im bias. They are pretty similar personality wise so you will be happy with either as long as you work with it. I love tegus. Mines has so much personality. She has fits and is always sticking her nose were it dosen't belong. She's like a little kid. but she is really sweet and will sleep in my lap while im watching tv. Ive seen savs just as tame too. The thing about tegus is it's easy to find cbb animals which makes the health and taming thing sooo much easier on you.