server farm switch

Hi guys,

I have to choose server farm switch , but i did't have enough experience for that.

My short list of vendors - Cisco and Juniper.

technical requirements:

- 10G
- standart L3 switch
- non stoping Upgrade
- MPLS
- MC-LAG \ vPC for stack from two devices

My server farm its about 10 servers in vCenter Cluster and storage with brocade SAN switch

My exprince its Cisco 3850, 2960, Juniper vSRX, Extreme X670

roughly i choosed: Cisco 3524-x, Juniper QFX5100 and Juniper EX4600

I am inclined to option QFX5100 , because:
- ISSU/NSSU
- not need purchase license for L3 functions
- FCoE
- my be we'll be usage MPLS for Campus to DC connect
- that more modern equipment then EX4600

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My question it is, what do you think about my choose and if you have approximately the same configuration what do you use for these purposes?

And if you find my selection not enough convincing please give feed back why and what else i should pay attention.