Fastest way of transferring files between 2 server's over network in Linux

Fastest way of transferring files between 2 server's over network in Linux

-- SCP :  It showed 20MB/sec
-- FTP : Requires ftp installed id/password  : 40MB/sec
-- NetCAT : Might work if netcat is installed.  : 60MB/sec      
   source : tar -cvzf /dir/ |netcat -l 7777
   client :  netcat source_ip:7777 |tar -xvzf path

-- Using Python / WGet  : 80MB/sec

Server:
 # cd $folder_have the file
 # Start python webserver with this command.
 python -m SimpleHTTPServer
Client :
 wget -c http://Server IP:8000/$file
-c will recover from a file break if something broke half way.