My first enterprise box: Catalyst 6506 Sup1A, so there's some sweet memory for 10 years until it broke.
Things that I've enjoyed:
- Brocade MLXe-8, crazy powerful but unfortunately it doesn't support newer protocols such as EVPN-VXLAN, but MPLS-L3VPN/L2VPN/VPLS works so easily.
Router that I've wish I'd have:
- Juniper MX204, crazy fast 1U gateway router with all of the protocols supported, replacing MX80 and MX104.
- Arista box, manly for EOS, you can run Docker container on EOS.