I really like Dynaflight '97 and 8125G--been using them for years.
I never tried Dynaflight 10--I think it's discontinued now anyway.
I haven't used Trophy either--I have 450+, and there's very little difference in the two.
I have been experimenting with the 8190, and so far I am impressed. I've only shot it on a longbow so far, but others are trying it on recurves.
It's a very small diameter material. That will work out good for folks that like "skinny" strings--you can get a small diameter string without having to go with a very low strand count. I'm shooting 12 strands on my longbow now, and it's similar in size to 6-8 strands of Dynaflight '97.
Very low creep, very quiet. If you prefer a larger string, just use more strands--18-20.
If I keep getting the same results, I'll be carrying the 8190 soon.
As for your question about any major differences...depends on what you call "major".
Dynaflight 10 is (was) SK78 Dyneema.
Dynaflight '97 and 8125G are SK75 Dyneema.
8190 is SK90 Dyneema.
Other than the strand diameter, I haven't seen what I'd call a "major" difference--comparing apples to apples (I built them all). The 8190 has very low stretch/creep. Dynaflight '97 and 8125G also have very low stretch/creep, unless you go too low with the strand count. 8190 has less, but not a huge difference.
I don't think you could go wrong with Dynaflight '97, 8125, or 8190 for your personal use.
Chad