Experienced players don't waste time going for 4, since the cookie drops after 3! As long as you win the boss fight v the Cookie Monster in Quake 3, of course.
There's only 1 cookie, but you could—altho I hesitate to promo this—go for 5, and then pay $15 for entry into a drawing for a NFT of the ultra cookie—the one with the choc chips. Great value if you win—no crumbs, no going stale, no melting onto your fingers…
I'm gonna answer it with full bias and say Team Fortress 2. Unique and amazing characters with personality, same thing goes for the weapons, lots of HATS, active community and above all the game has stood the test of time.
Right now there's a huge cheating/bot infestation problem in the game but if Valve does something about it in the future, I can easily see the game going strong another 10+ years in the future.