TrueJim
Master Black Belt
I realize that this is hardly scientific, and that it's also very geography dependent...but I found this interesting nonetheless. Here's a Facebook "poll"...
As of this writing, there are 241 votes for WTF and 48 votes for ITF. This is more lopsided than I would have expected.
Along those same lines, it was suggested on the taekwondo subreddit that we should start listing taekwondo tournaments, so I started such a list and have been adding to the list (at least for US tournaments) whenever an announcement crosses my screen:
Upcoming Tournaments • r/taekwondo
In developing this list, I was struck by how few ITF tournaments I come across.

As of this writing, there are 241 votes for WTF and 48 votes for ITF. This is more lopsided than I would have expected.
Along those same lines, it was suggested on the taekwondo subreddit that we should start listing taekwondo tournaments, so I started such a list and have been adding to the list (at least for US tournaments) whenever an announcement crosses my screen:
Upcoming Tournaments • r/taekwondo
In developing this list, I was struck by how few ITF tournaments I come across.