Collins, 29, came under fire earlier this season after costly blunders against Swansea and Reading. But the Welsh defender, keen to win fans over following his return to Upton Park from Aston Villa, has turned his career around in 2013.
Collins was outstanding at Liverpool and says: "I feel like I am producing the best form of my career.
"I had a couple of mistakes which I needed to get out of my game.
"But I have put in some good performances and I was delighted with how I played on Sunday. I'm happy with my form. Hopefully it can continue until the end of the season."