The JBL Northridge is overrated in my opinion, you can do much better for the money.
I have not heard the Bronze B1, but I have briefly heard the RS-1 and it seemed like a decent bookshelf speaker.
I have not heard that particular Wharfedale speaker, but some of their other stuff is very good.
I have not heard the Beta or Jamo speakers so I cannot comment.
And Bose is the mother of all overrated speakers, you're just paying for the name.
You might also want to check out some Axiom bookshelf speaker or the CBM-170 from Ascend Acoustics. I personally think these 2 would blow away most of the speakers you mentioned.
There are a few other speakers I could recommend but they would depend highly on your tastes in music and, of course, your budget.