Ryanair.

My dislike of Ryanair is well-established on this Blog. Currently, they are making a bid for Aer Lingus which would leave them they only serious air carrier based in Southern Ireland.
With an effective monopoly + their barely concealed love of filthy lucre, the outcome for consumers is bleak.

Perhaps, for once, the limitless powers of the EU could be used for the good of the people and this potential monopoly could be prevented.