Hi Shani,
+1, I'm interrested in learning about the whole competing Automation product landscape as well (no reason ... )
I can't tell you anything about TWS or Tidal, since I've only ever used Automic (and cron ) but a good strategy might be to query the respective sales folks with a quick email. They usually have (of course not neccessarily entirely unbiased) white papers about their product and what (supposedly) makes it better than the competition.
As for CA's competing portfolio, it's simple. CA has said they will only go ahead with Automic and retire the other products (don't have any links, but they claimed this in multiple instances e.g. at AutomicWorld).
Hth,
Carsten