I deeply researched this a few years ago.... and the best reviews were for Dr. Rey's Shapewear ( JC Penney cares a full line... I got mine via ebay for half price )
I read reviews for weeks.. from all over the web, personal friends and their friends...
Hands down the Dr. Rey's got the best reviews for shape control and comfort...
Like others I was instructed to get the long line thugh version. I did so, but I really think the panty line would be more comfortable in the long run.. for me anyway.
Mine is high waisted and comes just under the bra line.
Now, according to their measurements.... I got the size they recommended... holding it up... it appears to be made for my 3 yr old grand daughter.... * sigh * but it WAS for my size.... * uh huh.....skeptic that I am...* Well, let me tell u... once I got it on it was actually comfortable.. must more so than I expected for the size it looked... I was surprised to even getingot the thing... but I did.. no. mind u... I won't even put it on in front of Zipster the cat....... even he would die from laughter... getting into it aint' pretty by any means.... and talk about wiggle, wiggle twist and turn....!!! But I got LOTS of compliments on it... and I was comfortable all evening ....( thankfully, it's made so u do not have to go thru taking it off to go to the ladies room... * and to think I lol at this design when I saw it.. after struggling to get it on.. I was glad to have the design!!!*
Dr. Reys is more expensive.... but I widdled off a good 20 pounds wearing it...!