Deciding between Wilson 2900 (or Q90), Yamaha Neo 642, Yamaha 842, or a Besson

Hello Reddit euphonium players! As mentioned in the title, I will soon buy a new euphonium and I'll be choosing among those models above. The budge is not a problem at the moment, I'm just looking for the best euph I could get and the one I could grow the most while using it. I love the sound of the Neo, but I felt like the response of the 842 is amazing, I also tried the Wilson 2900, but I found the sound too be a bit thin? (I am not sure how to explain). I'll definitely be playing some Bessons before deciding too.

Any consideration from players of those instruments would be greatly appreciated.

Thanks in advance

Update: thank you everyone for the detailed opinions/descriptions of each horn. They were extremely helpful helping me deciding which one to get, and what to look forward when testing the interments.

I ended up getting the Willson 2900 :-)

I tried 4 Bessons, 6 willsons, 6 Yamahas and one Adams

I was torn between a Yamaha 842 and the Willson. But in the end, I found that specific willson had such a full and beautiful sound from bass to high notes that I just started smiling when my professor was playing it it.

Can't wait to spend the day playing tomorrow

Again, thank you everyone for the help!