Climate battle: Metz vs Omaha

I sense this one may get as close as Kentville vs Minneapolis. Two very different climates, but both are at relative distances from oceans and therefore have substantial seasonal swings within their own paradigms. My vote is obviously for Metz since it's milder in summer and winter. I'd fancy it to have 500 more hours of sunshine, but then again using French measurement methods Omaha would've probably just had somewhere in the 2400's anyway. Also, it's winter lows are bone-chilling and summers would be humid and influenced by tornadoes. Not very fun. Metz B- and Omaha D- for me.