Hi,
I choose Premium Economy too ( VS Sliver- not that i'm biased
On the 747-400's PE is on the Upper Deck - very nice and quiet whereas with BA WT+ it will usually be over the wing.
VS PE-Priority luggage tags -
BA WT+ No special luggage tags.
When flying LGW-LAS in PE I got offered access to the Clubhouse for £20-good value for money.
I doubt I would have got that with BA.
( Also have received 2 op-upgrades to Upper Class
)
Nothing against BA -good airline but I think VS wins.
You can also get discounted PE tickets (K class VS ,T class BA) for a significant reduction on the fully flexible fare
Regards
TBS