Yep to all of the above..
SCI would be the choice for me if coming from outside the US... TTHA is growing, and Dallas is great.. but its still know and the Jan 2026 show is still an unknown...
DSC is struggling.. and its still unknown what their intent is for the 2026 show... no clue where its going to be, when its going to happen, etc.. they have a whole lot of work to do before they regain the confidence of the attendees and the exhibitors.. If I lived reasonably close to wherever DSC lands I'd probably attend.. but if coming from OCONUS, it think there is way too much risk.. especially for a first time show attendee..
Which leaves SCI.. which is well established, has had huge success in recent years in Nashville, etc.. its almost a guarantee that there will be a large showing of exhibitors, that a huge number of like minded international hunters will be present to meet/get to know.. Nashville has A LOT of great stuff to do outside of the show itself.. and while there is always a possibility of bad weather, Nashville rarely gets hit with really bad snow, ice, or even rain.. the probability of great weather is much greater than the possibility of bad..