This was posted in the winlink programs group. The mesh network was 1800x faster than 1200 bps packet, 199x faster than 9600 bps packet, and 144x faster than VARA FM.
AJ7C and I did some throughput testing (He did the heavy lifting; I just crunched the numbers). I think you'll find this illuminating.
Throughput sending a 94.4 KByte message:
1200 BAUD PACKET WINLINK (direct; no digipeats) = .4 kbps (400 bps)
9600 BAUD PACKET WINLINK (direct; no digipeats) = 3.7 kbps
VARA FM WINLINK (direct; no digipeats) = 5.1 kbps
TELNET POST OFFICE (AREDN MESH NETWORK - three network hops) = 737.4k kbps