Both are not really clear and not the best way i will recommend as a senior IT Manager:
In enterprise infrastructure you have these key elements:
Your gateway/security/Loadbalancer , SAN, QVServers, QVPublisher, QVWeb, Storage.
For clustering i will recommend you to have:
* 2 QVWeb as frontal
* 1 or more QVservers linked to the publisher.
* 1 QVpublishers for scheduling and distributing qvd and qvw.
* 1 share SAN clustered storage FS (or NFS) where all your qvd and qvw will be generated and accessible from other QV servers.
The Loadbalancer will manage redondancy traffic & keep alive toward both Webservers.
Hope this will guide you toward best practice.