My sister travels a lot and wants something good for listening on airliners. I'm thinking of getting her both the QC15 and ER-4PT for christmas so she can try both and use whichever she prefers. Would also be wiling to get her the QC3 if those are better than the QC15.
Do you think these are the two best options out there or should I look at something else?
Personally I dislike (okay, despise) bose but they're what she wants and I know since she sees everyone else wearing them she'll be disappointed if she doesn't get a Bose set. I already have a 5 year old ER-4P for myself and love the damned things, but realize not everyone can tolerate deep IEM insertion.