I have a modern STM 6* that I used exclusively for years. It's interesting that most people seem to go for even more open tips, I consider the 6* fairly open but I guess not. I haven't played a Tone Edge but I'm curious how they play.
I actually put away my Link for the last couple months as I got a Select Jazz D6M and have been playing that. Yesterday I was just not happy with it, both sound and playing experience, and brought out my STM again. It's not as punchy, and the easier to voice low register has the trade off of a harder to voice high register, but I like it, and it's more enjoyable to play (more freeblowing) than the Select Jazz, and is beautiful in a different way. Maybe because I played it so long, it's my comfortable standard. I like the Select Jazz but I may go back to the Link as my main piece.
I'm a bit surprised that the alto/tenor thing is so strictly divided between Meyer and Link. Tradition is really strong, I guess, but seeing as I got a Link because of Coltrane I can't really say anything against it. At least now you have a lot of new, different designs, but it seems to me a bit of a shame you have 50 variations on a Meyer for alto, 50 variations on a Link for tenor, and mostly they don't bother to bring any over the other way. You can get a Link for alto or a Meyer for tenor but even JJ Babbitt doesn't make the special ones for the other. If you want a good alto Link style with higher quality, you search for the grail or get a custom reface.
I like the STM, it's a certain sound and is too overlooked on alto.