By Sean Walsh After a winter that lasted what felt like an eternity, the Champions League resumes this week with the beginning of the knockout stages. The remaining 16 teams will be boosted by the fact some of Europe’s best sides, such as Premier League leaders Liverpool and Bundesliga favourites Bayer Leverkusen, are actually stuck in this year’s Europa League. But as you’re quickly going to discover, that’s not so much of an advantage for these sides, with the race to the bottom perhaps a little more interesting than that to the top. Which side will go all the way and become kings of Europe?…