I think Arsenal would beat Betis without too many problems. They're not that amazing and really overperfomed last season to make it to the Champions league at the expense of other Spanish clubs like Sevilla, Sociedad and Valencia.

Still they'll be a good test of Liverpool's mettle.

I'm with you on the "not a fluke" issue though. Chelsea don't score a goal for 180 minutes, they didn't deserve to go to the final. The goal may have been contentious, but guaranteed Chelsea would have fancied their chances much more at 1-0 with 11 men, than 1-0 with 10.