FlyerTalk Evangelist
Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: BA Silver, TK E+, AA PP, Hyatt Globalist, Marriott LT Plat, Hilton Diamond
Posts: 13,104
The times I've flown VY with an IB code, I haven't figured out how to pre-select my own seat, but every time I was given one of the preferred seats in the front part of the cabin. So at least you're quite unlikely to get the usual VY computer garbage of separating 2 pax or putting you in a middle seat in the last row... to get you to pay for assigned seating, etc.
OWE with BA is definitely worthless when flying VY out of BCN...