I'm wondering what release is more stable in terms of hardware drivers support for a Lenovo B570e , 12.10 or 12.04 ?
I have a 64 bit system but I see on the website the recommended version is 32bits.
I'm a little bit confused, actually what I need to know is which one is better for hardware components support.
I have a four-week old Lenovo z580 and I run 12.10 64bit.
To answer your questions
Though 32 bit is the recommended version, you can perfectly install the 64bit version. It works fine.
Both 12.10 and 12.04 are fairly steady in terms of hardware support. That is, let me be precise, all your hardware will work out of the box, but if you have nvidia optimus (which means you have a graphical processor on your normal processor and one separately), this will not work out of the box. Check bumblebee for that. All other hardware should work fine both on 12.04 en 12.10.
One thing you might want to take into account is whether or not you have UEFI booting (if your hardware is new, you might have UEFI). You can check it by holding F2 on boot and going through the menu. From what I know, 12.10 is a signed version (read this post) and 12.04 is not.
The other thing to take into account is whether or not you want to work on an LTS version (as you indicate yourself). That is a personal choice.
All in all, I think 12.10 is the way to go for you. One piece of advice based on my experience: take your time to install ubuntu. I had to play with the boot options in my 'BIOS'. Also, think your partitioning scheme through in advance to avoid unnecessary work.
Good luck.
