Ok, so I think we can say that Thiel's might possibly be better for those who appreciate more casual vocals and light instrumental music, and for those who have a more modest budget to spend on speakers. Also, for those who like wood finish on their furniture, the Thiel is the only choice here. As for Wilson's, you take your race car finish, and make it work with your lifestyle.
As for amplification, seems like those who appreciate light instumentals, vocals, and some chamber music as their listen of choice, a tube amp may or may not be your compliment of choice with Thiel's. Bass will likely be less impactful than with SS, however. With Wilson's you can easily use some tube gear, get some slamm and deep extension, as they are higher in sensitivity BY FAR than the competing Thiel's. Also, you can get by with lesser wattage amp's on the Wilson's. Wilson's are definitely more tuneable with either SS or tube amplification, IME. Either can also be done well with SS or tube preamp match-ups.
Wilson's are also likely better for those who want to spend a lot, and desire to get world class fit and finish, good sound, and "a conversation piece/statement pieces for their collection of "stuff!". Also, possibly, those with some cash to spend, who want a high end sounding, high performance HT system, and money's no object, then The Wilson's are likely a good choice to look at.
Doe's this sum up the situation more effectively?