I've posted on this topic before somewhere on this forum, but don't remember where.
The Touchwiz launcher has to be running for incoming calls to come to the ticker. I, too, find this feature indispensable on our phones.
I use LauncherPro. I have created an invisible shortcut to an "activity" that launchers Touchwiz launcher after I've rebooted my phone. Touchwiz comes up, I hit my home button and LauncherPro comes right back up. I never see Touchwiz again, but the service necessary to send incoming calls to the Ticker continues to run until I restart my phone again.
I tried GoLauncher but went back to LauncherPro. I can't remember why I did, but it might have been because I was unable to make a shortcut to launch Touchwiz. I don't remember.
So, I just have to remember to launch the shortcut anytime I've restarted my phone, and I'm good.
Touchwiz doesn't show up in the normal app list, so I needed the more granular set of options that "Activities" in LauncherPro provided.