Comcast and CenturyLink are the only two viable players in my area
Yeah, it's your area, not mine. I totally bitch about Comcast on the tv side, but the internet side is pretty kicking:
% ping6 google.com
PING6(56=40+8+8 bytes) 2601:982:zzzz:xxxx::yyy --> 2607:f8b0:4004:80d::200e
16 bytes from 2607:f8b0:4004:80d::200e, icmp_seq=0 hlim=53 time=295.256 ms
16 bytes from 2607:f8b0:4004:80d::200e, icmp_seq=1 hlim=53 time=32.454 ms
16 bytes from 2607:f8b0:4004:80d::200e, icmp_seq=2 hlim=53 time=35.679 ms
16 bytes from 2607:f8b0:4004:80d::200e, icmp_seq=3 hlim=53 time=28.495 ms
16 bytes from 2607:f8b0:4004:80d::200e, icmp_seq=4 hlim=53 time=30.069 ms
^C
--- google.com ping6 statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 28.495/84.391/295.256/105.461 ms