^ yup, the VJ one isn't too bad at all. I got it for around £66 including postage a while back, so bear in mind it's not the best value it's ever been (but unless the exchange rate changes drastically the price is unlikely to improve any time soon). I definitely think it's better for lower gain tones, it can sound a little bit boxy when i run my engl's higher gain channels through it (though now i think about it, maybe I just haven't adjusted my settings from my other cab :lol: ), but is fine with low to mid gain.
Personally, I'm going to upgrade the speaker, but that's to fine-tune the tone I'm after (I want a more sparkly american tone), rather than any shortcomings in the stock speaker, which isn't too bad at all, as Ben said.
I haven't tried any of the others on the list, though.