Which would you rather experience?

For me personally the answer here depends heavily on how much is at stake. Me i would choose the option which would give me the most money.

Of the options you suggested, I would choose a jackpot in slots, or winning a major poker tournament.

I would choose the option: win a poker tournament. After all, poker is a game of skill, and I would be very pleased with myself if this skill manifested itself in this way.

Assuming all winnings are equal, then its winning a poker tournament all day long.

I love poker and winning is a real confirmation of your skills and effort.....the rest is just pure luck and I don't really have much interest in the rest of the casino.