IMO - the Avent one is the absolutely the best as far as wind bubbles and not sucking the teat together for air release I found, so I can totally see why it would be 'anti-colic'. But it really depends on what your baby prefers, their sucking style, and if you're combining BF and bottle feeding can impact on choice too.

I used Avent and Tommee Tippee closer to nature, I did try others but these were the only two that worked for us. With DD1 she preferred the Avent as she did not care to come up for air or let go of the teat ever and it was the only one that didn't create a big gas bubble, or get her so frustrated with the whole 'releasing so the teat could fill with milk thing'. With DD2 however, she hated the Avent as it was too hard and 'bottle' like and she would only take the tommee tippee as it was softer, not as long and hard, and more boob like (that is until she refused to take a bottle at all in later months).