Rangers are currently in tenth place in the Premier League, while undefeated Villa occupy eighth position.
"I'm sure that it will be a very open affair with plenty of opportunities," said Warnock.
"I like Alex (McLeish), he's a top man. He's a steady person, a steady manager and they've had a decent start - undefeated so far.
"It promises to be a great game and I think it will be, especially given the way that we're playing."
This season marks Rangers' first campaign in the top flight for 15 years.