The Liberator Wedge and the Liberator Heart Wedge both have great and similar benefits, though they're a bit different in size, shape, and price. Some reviewers say that the Heart Wedge is nicer in that it is smaller and easier to maneuverer, and that the shape makes it easier to use hands and toys during doggy style. On the other hand, I'm sure many would stick by the traditional Wedge. So, if you had to choose, which one would you go for?
On a related note, I just saw that the Décor Heart Wedge will soon be offered in a variety of awesome new colors!
Edit: Ack, I just realized that punkstar283 made a thread comparing the Wedge, Ramp, and Heart. I thought they were comparing the Doc Johnson Wedge due to the picture, but now I'm not so sure. Sorry about this!
As somebody who has both, I can tell you that I love both for different things. The heart wedge sits out all the time, because it's heart shaped and adorable and totally discreet and all that jazz. I use it a lot for propping myself up in bed for reading or laptopping. You can easily use the heart wedge for just about everything the regular wedge can do, so long as you aren't bigger than the heart. I mean, it'll still work, but it just might not be as comfortable. The regular wedge can still be left out, since nothing about it screams "sex toy" or anything like that. It's not as cute, but it'll function the same way, being able to be used as a backrest and all that. It might be better for holding some positions because it is wider than the heart.
I have a hard time choosing, because I really do enjoy them both. The heart is a lot cheaper tho, and makes an adorable accent. I think you'd end up happy with either one.
I only have the regular wedge and I love it. What motivated me to get the regular over the heart is that I'm a bigger girl and I wanted to make sure it fit me width wise.
I agree with The Curious Couple. If you plan on ever obtaining the ramp, then you'll probably want the regular wedge to go with it.
If you or your significant other is at all a little larger, go with the wedge, ramp or even the Jaz. The Heart wedge is much smaller, and some folks have commented on the ease of rolling off or just feeling uncomfortable due to the fact that you are not uniformly on it.