Frankfurt @2.45 and Rangers @2.90. I think these are evenly matched odds and neither one is too much of a favourite, so both really have a chance to win. I personally can't underestimate either of them because both of them came into this final in an unpredictable way too, so with them playing in this final they have basically been the best this season. But even so, I was expecting the surprise that Rangers might make, but I can't forget Frankfurt's performance. Regardless of the available odds, I personally still admit that Frankfurt has a better chance of winning.
I also know Frankfurt better than Rangers but in the final it will be very different I can't say for sure what happens with Rangers tonight but I think in this unexpected final it will be more interesting, honestly I'm looking forward to it.
I think I'd be the same as you to choose a bet in this Europa League final on Frankfurt as champions this season, who would have thought they haven't been in the final for a long time except now.