To clean install a ROM you're suppose wipe cache, wipe davlik, wipe data/factory reset. Should you also format system? Anything else?
Nice. I just posted a question about titanium backup. When I restore my apps and settings after a wipe and ROM flash, I have to manually install half my apps before it starts auto installing the rest. Any idea how to get it to auto install all of my apps and settings?
Well on a related note, it is not typically the best idea to restore system apps. It is known to cause issues with the ROM, etc. And I wonder if it has something to do with you restoring so many. Did you ever cancel the market downloads and then go back in to restore the rest with TIBU?
If you want to backup and restore your homescreens, you can use a custom launcher (Apex launcher, Nova Launcher, Holo Launcher, and many others are out there), they often come with the ability to make a backup of it's setup. So that when you reinstall them on your new ROM, you can just restore and it restores all your preferences and screen setups that you have backed up from a previous ROM. The stock launcher doesn't have this option.