Whizlabs vs. JQPlus vs. JCertify

[Lisa French]

I'm trying to decide which of these exam simulators to buy (if any) but I can't find any reviews on them. Which do you prefer (and why if you don't mind)?
Thanks!

[V.R. Sundar]

I am interested in this topic too. I haven't got to the stage yet where I am ready to take simulator tests. Just started getting into Java... reading khalid mughal /doing some Java programming ( my work now involves java) etc. I plan to try these sometime though. Any thoughts on if you found these simulator tests useful, the one you like the best etc. are greatly appreciated.
thanks
sundar