I had problems with my Samsung laptop in 12.04; specifically, my monitor would freeze. This never occurred when I was using 11.10, and I never had the issue using 12.04 on my desktop pc.
However, my desktop pc is going on three years now, and it was jumpy and buggy. I backed up all my stuff, and upgraded to 12.10 and now my desktop runs flawlessly!
But I think I'm going to keep 12.04 on my laptop, since that is where i do most of my schoolwork. I went through a large hassle reporting bugs (for the first time!!) in the middle of a semester, had some issues with the kernel and screen, and that kinda stank... I learned a lot, but i don't want to do that again with a machine for work.
If its for play, like my desktop, i say try it out. 12.10 is really nice, from what I've seen of it.
If it ain't broke,then break it!
I say if ya want change try Xubuntu.
I upgraded to Ubuntu 12.10 64 bit and I messed it up so I wound up re-installing Ubuntu 12.04.1 64 bit LTS. I found that the stock Linux 3.2.0-x generic kernel to lock up my System76 Lemur Ultra Thin (lemu4) notebook PC because it has the new Intel 3rd Generation "Ivy Bridge" CPU and Intel HD Graphics 4000 integrated GPU. So, I upgraded to the Ubuntu Linux kernel 3.4.0 and it solved my problem.
The latest Ubuntu 12.04.1 64 bit LTS is the only way to go. It's not fun trying to fix broken software especially if you have only one operating system installed bare metal.
LTS may be boring, but it's the safest choice available compared to the interim releases. The interim releases are really dicey depending upon how many updates have been pushed out so you're taking a risk with your user data by upgrading or installing them bare metal especially if you only have one operating system installed on your PC.
I'd say no due to my experience. I was in your boat too and I can relate with you. It's just not worth scratching the itch because it'll bite you in the end.
An LTS is best to keep. I wouldn't necessarily upgrade if i were you.
Maybe you could test it out and see if you really wanna upgrade?
Get the Iso and burn it to a disk or a flash drive and bam! Behold Ubuntu 12.10 right at your finger tips.
Although on a personal note. I was really satisfied with 12.10, 12.04 is perfect for what i do.
Having Ubuntu/Debian underneath can be enough.
Linux Mint 14 is a solid option.
Well designed Gnome 3 touches and quite stable on 3 machines.
An open mind about desktop environments can prove useful.