Cadillac Super Cruise is limited to select roads only, their site states 130,000 miles of mapped highways. The Tesla system, I am only referring to EAP, works on any road it can find lines. Having used it the hardest part wasn't in trusting to keep in the lane but stopping. However that part is true with a traffic aware cruise control system.

is it flawless, no, but it does work in conditions I didn't find fun driving in. An example was two lane highway, at night, in the rain, with enough jokers with badly aimed lights or not dimming their lights. It did very well and let me feel confident looking away from the road if the oncoming car's lights were too bright.

I did not buy the FSD suite, I don't have a desire for that level of autonomy and I am not confident anyone will pull it off soon. I mean I have seen examples where they map it all but that isn't the same.

I don't believe this is correct. If you want to change lanes, you engage the turn signal, Supercruise will show blue light. The blue light denotes Super cruise is paused while you change lanes. After you've changed lanes yourself, you wait for the light to glow blue again so Supercruise can resume.

Here is a video from Cadillac showing your statement is false: https://www.youtube.com/watch?v=_rxW68ADldI&t=0m39s

Tesla will speed up or slow down and change lanes automatically. This is not the same. Also, Supercruise is only enabled in very limited circumstances. You can use autopilot anywhere even if it isn't officially recommended.

Correct me if I'm wrong, but doesn't supercruise watch your eye movements and alert you if you take your eyes off the road?

This is completely false. Supercruise cannot even handle lane changes!