(Don... I didn't put words in your mouth, not intentionally at least. You said before that the most-advanced starship is most-reasonable a choice for a Federation President upon choosing his own personal starship for transportation. Then you imply the Sovereign-class would thus be the choice. In 2372 or 2373, yes. Not in 2374+. If we continued your logic that the most-advanced starship would be the choice, it points out to the most-powerful, top-secret warship Starfleet has to offer; The U.S.S. Prometheus. That is why I replied the way I have. Also, you were open enough to be disproven. You first and continually replied that the Sovereign-class was the most-advanced starship. ... Now you say "of its type," and still I am open enough on disagreeing; The Sovereign-class is more a ship of battle against major current threats of its time than a ship of exploration. It fits in with ships like the Defiant, Akira, and Prometheus. I was trying to explain my simple disagreement, that's all. Now continuing with that...)
Comparing "Star Trek: First Contact" to "Message in a Bottle" (VGR), I'd have to disagree Don. Sorry for the stubborness, but since when can the Sovereign seperate based on on-screen canonical evidence? The closest to such is the bow of the ship being ripped apart when it is backing off from being welded inside Shinzon's ship after the collision. But that's hardly a saucer seperation that the Enterprise-D had performed a few times in her duties or the Prometheus in the aformentioned Voyager episode. And although it can be argued that we haven't seen a D'Deridex Type-B Romulan Warbird ("The Defector," "Tin Man" [TNG]) go up against a Sovereign, but what kind of Federation Starship can easily destroy such a Warbird and remain (for the most part) unscaythed?
More proof that the Prometheus is more advanced could lie in its holographic technology. Since when do you see Emergency Medical Holograms running around Sovereign-class Starships? Since when do you see Tommy Guns being fired at Borg outside of the holodeck? The point is, Hologram technology expanded past the Holodeck where the Prometheus is concerned.
To me, I feel convinced the Prometheus was the testbed for technology improved from what was then the "most-advanced" starship outside of classified material. Also, when in MVAM, A little fifth nacelle on the top "saucer" of the Prometheus was what was keeping up with other parts of the ship when driving off a Nebula-class...
Then we have Andy Dick! Oh, sorry, that's the actor's name for the EMH Mark II (also in the aforementioned Voyager episode), a prototype in itself and more-advanced than the EMH Mark I of the Enterprise-E.
You are right in the matter of personal preference Don (and Battlestar001), but wrong in the matter of most-advanced starship. Technically, the most-advanced starship would have technology exceeding that of other ships. I ask you, why is the "most-advanced" starship (Sovereign-class in question, according to you Don) using technology outdated by the Prometheus-class? Just because some projects start in the same years as others doesen't mean it'll use the exact same technology upon release, especially if one takes longer than another. Prometheus is such an example compared to the Sovereign.
Going by the logic of most-advanced starship being the choice for the Federation President's interstellar transportation, the Top-secret U.S.S. Prometheus is the choice, not the Sovereign.