I'd also add that it's still most likely we'll end up with neither, so either would be lovely!There's no right or wrong answer imo, winning the cup would feel more joyous at the exact moment in time, Top 4 and the CL that it brings would bring more sustained satisfaction over a period of time.
I fucking loved it each time won the League Cup, it's the only trophy I've ever seen us win abd neither time did I think to myself, oh it's only the League Cup.