To stay true to the question, not how good my B is in my super bass:
FACTORS:
Scale length
String gauge
Tension
FACT: The same exact string in a 34" scale bass is going to have less tension (33" even less) than the same string on a 35".
who can say for a fact of how much difference (Lbs.)?
I would love an answer to that
So if you want a tighter B go for longer tensions (Fact)
FACT: the heavier the string the more tension with require to tune at B
So if you want a higher tension B go for a higher scale bass (FACT). Because a higher scale bass will always offer a higher tension (using the same string) than an lower scale bass (of course if you are using an 2" gauge string in your 23" scale bass it may be the same tension who knows

)
But is dont care if your bass cost you $5000 the B tension should be the same as an $150 (again using the same string), unless you are out of tune.
But of course the setup and all that @#%@! you $5000 bass will feel better (1st because you need to justify the huge investment, 2nd you tell that to your friends 3rd it may be actually better)
So as a rule higher scale more tension... if that what you want choose a 35", if you got short arms get an 25" scale baby bass

with a higher gauge string to compensate.
or we can just use or own opinion and never agreed about this issue! like a previous post said the same discussion about 4x15, 8x10. its about taste.
PS I dont know how to write well pardon my English. I hope you like this post.