bk66md....gotta disagree with you there mate about most people choosing Veritas.
It's true that Veritas has the biggest market share but, from reports I've read they have been losing customers over the last few years due to EMC Legato and CommVault getting stronger.
Veritas made really good ground a few years ago in the enterprise space when there was limited options to choose from ie. Netbackup, Legato and TSM.
Most of the gains for Veritas have been through customer loyalty (takes a while to learn Netbackup) but, EMC Legato and CommVault have been increasing their market share through new business.
CommVault placed in the top tier of enterprise data protection (only 3 in there Veritas, EMC and CV) by Gartner within only a few years of CV being released commercially.
Only repeating what I've read in surveys, reports etc.