According to Gartner, Veeam is about 1 cm (or inch, if you prefer) behind the leader in Vision 
Honestly I have no deep knowledge about other competitors. So I looked at Veeam’s Strengths and Cautions.
Strengths:
- Instant recovery
True! More and more workloads are adding to this feature. Like Database and NAS in v11. - Cloud cost transparency
Yes, with Build-in cost estimation. Like for Veeam Backup for AWS 3.0 - Technical support
Customers are very satisfied with support. I personally too. What is not mentions is the satisfaction level of the software quality, which is also extremely high.
Cautions:
- Deployment complexity
In large-scale environments, this can happen. Veeam roles can be distributed over a lot of Windows/Linux servers which can be physical or virtual. Veeam does a good job in distributing job/tasks automatically. But these server has to be maintained as well. - Data reduction
True, but this also includes a huge advantage as well! Because there is no global deduplication, files of a backup chains can be used for restore without any deduplication-DB, VBR installation or other complex tasks. - Automated tiering for cloud-native backup
This is available with ScaleOut Backup Repositories. Is it not supported for AWS and Azure VM backup?
Veeam is also on the top in ability to execute, which is very powerful strenght either! 
