I just ran a quick test using CF2021 connecting to UPS homepage (to a 302):
CFX_HTTP5: 148ms; 91ms; 87ms
CFHTTP: 497ms; 203ms; 189ms
Microsoft homepage: 500 error using either method (weird)
Accessing
CFDOCS.org (200 OK):
CFX: 81; 60; 27; 36; 24
CFHTTP: 73; 63; 75; 61; 55
It appears to still be faster. I like that it can ignore SSL errors and doesn't cache DNS lookups eternally. (This was causing a problem when using CFHTTP with cloud-based API servers with dynamic IP addresses.)
Let me know if there's anything specific that you want compared.