Well lets see now ... out of the stallions mentioned, which of them have evented up to that level? Certainly not Fine Romance, Sir Wanabi or Noble Houston
And also has been mentioned on many threads on many forums, ability in the show ring themselves does not 100% translate into passing that ability on to offspring so the trick is finding the stallion that has competed up to the highest levels that is capable of passing that same ability and desire to their offspring
Take Hickstead and Totilas for example. Will their offspring be talented enough to warrant the high stud fees charged to breed to them? Who knows - we are YEARS away from finding out. Their bloodlines *suggest* that their offspring *should* inherit the same traits, but there are many that feel that Hickstead is a complete and total freak of nature and he will never be able to pass on the same traits that made him such a superstar. Briar was touted as "the" dressage sire of the century - how many of HIS offspring are competing at the same level as Briar with the same results?
Other stallions ARE capable of producing credible offspring, but only when bred to a mare who competed at the highest levels herself.
So - if you take a stallion who competed up to only Training Level eventing and in the Working Hunter ring and bred him to a mare that was successful at the Intermediate and Advanced eventing levels and you produced a talented offspring - is that the stallion's genetics coming through or the dam's???
Lots of things to think about for sure
Denny Emerson has some fabulous stallions in his roster and Salute the Truth appears to have the credentials for sure in the performance category as well as producing credible offspring as well
Good luck in your search!