From 1998 to 2001, I wasted many hours on Quake2/3 deathmatch on the
internet.  I would love to have those days back, but of course, they're
gone.  Are there any games out there today that match Quake's level of
intensity, action and fun?  Paritcularly a free-for-all deathmatch?

I get very high packet loss with quake3 excessive.
Unknown if it is the same with normal quake3.
Packet loss is more 30 percent.
Other players on the same servers have less the 2 percent at the same time.