Miles&More: 2x less miles for the same flights  30 economy flights to get to silver FTL, 180 flights to get to gold FTL.

With Miles and More, you get to Star Alliance Silver status with 35 000 miles earned in a year.

With Miles+Bonus, you get to Silver FTL status with 12 000 miles earned in a year (if it includes 18 economy flights - or 36 flights to become Gold FTL

With Miles&More, you upgrade from Silver to Gold FTL status with 100 000 miles earned in a year.

Miles+Bonus upgrades you Silver to Gold with 4 Aegean flights, otherwise 48 000 miles.

In the earlier times, it was possible to get Gold FTL with Miles and More with 120 flight segments a year - this is not possible anymore, as I discovered in 2016 in my frequent traveler blog.

To get to Silver FTL with Miles+Bonus only 18 flights segments - where Miles&More would have required 30 flights and 35 000 miles for the same result.

To get Aegean Star Alliance Gold status with Miles+Bonus, I still need about twice what I did to get silver FTL, which means about 36 flights for 24 000 miles... whereas with Miles&More, even 122 flights for 67 000 miles weren't enough to grab the Gold FTL card!

Not only Miles+Bonus requires less mileage to reach Silver FTL or Gold FTL, it also offers more mileage for the same flights  twice as more as per below calculation of my frequent flyer website.