IBM Vs. HP Blade Server

Dear all,

We would like to go for blade servers based on our requirements.

Request all of you to suggest the difference between IBM vs HP blade server.

At my end we are detailing it thoroughly, but since it would be a big investment for us, we also would like to check the nitty-gritty between both IBM & HP.

You can also forward the links for the same.

Thanks & Regards,

Nilay