Solid state power + tube pre or visa versa?


Over the decades I've run solid state preamps with tube power amps and the other way around without being able to say which combination is necessarily always going to be better. I'm about to replace an entire system lost on a flood and find myself wondering at a recommendation that the combination of solid state preamp with tube power amp is ALWAYS better. Wanting to reduce my shortlist of potential amps I wonder if anyone has has a theory as to why these claims are made, a scientific one that is.
At the moment my short list is headed by the same Leban preamp I lost with a pair of bi-amped solid state power amps. Any thoughts?
Speakers are yet to be considered - I know - I should audition them first then choose amplification . All I know for sure is they WONT be horn loaded and highly efficient. Something like the top KEF's reference series maybe.
dismord
Mapman, you just don't get it, do you?
The OP has been moving back and forth for decades and he is no close now to choose. Comprendes, amigo?
I think he got good advice in this thread in response to his question that should help whatever way he might choose..
In that there are many combos of tube and SS that can work out quite well, as OP has exprienced first hand and has been re-iterated here, the key to to decide where to start and just do it right from there. Some will build their system around a tube amp. Some will build around particular speakers. Doesn't really matter as well as done properly with a plan to help assure things work together optimally.

You can even build around a particualr pre-amp. Does not matter as long as all teh pieces of teh puzzle fit together in the end including most importantly (IMHO) how teh speaker will perform in teh target room.
The only thing I can add is that I wince whenever I read someone say they want to put a tube something (often a pre-amp, but sometimes a buffer) in their system "to add some warmth" or "to warm it up". What an un-HiFi concept! I saw that comment made by Steve Hoffman, of all people. I wouldn't have thought it needed to be said, but apparently being mistaken I'll say it here: "Adding" anything is the very antithesis of High Fidelity, where being as transparent and sonically invisible is the goal.

If you find a system to sound "cold", the solution is not to add warmth, but to get rid of whatever is causing the coldness. First principle's! Real good tube products don't sound "warm", they don't sound anyway at all if they are transparent. The same with real good solid state products, which don't sound "cold". If a component adds warmth or coldness to a system, it is not a perfect High Fidelity product, by definition. While there may be no perfectly transparent components, adding two wrongs to make a right is not a recipe for success. Better to work at minimizing imperfection than trying to perfectly counteract a greater than necessary amount of it in the opposite, also imperfect, direction.
"High Fidelity" does not mean the results are pleasant, only accurate.

A high fidelity image of Medusa is the ugliest of all.

Though in a lot of modern depictions of Madusa, she is actually kinda hot! Must be photo shopped....