Be careful making picks on these matches... The CL tends to be unpredictable during the first couple of matches. Trust me, I know. Lololol.
Agree with you here, I´ve been active sportsbetting for quite some time and the the golden rule (to me) in the end was "never ever bet on CL matches". Well, maybe that just goes for me since I can´t predict them good enough, but also thats the stage where the biggest teams in the world meet and thus the most data is collected by the bookmakers, so that one would possibly agree that it is not very likely to beat the bookie (on the long run), not saying one couldn´t be lucky on one day though.
Do not sleep on Ajax, those dudes went so far ahead in champions league last year and they are playing Lille so I assume they will destroy them too, I would play either halves for them as well because they will probably score an early goal and then keep on attacking, Dutch football has always been focused on more attacks than defense so its a quite possible option to play 2.5 over as well.
Rest I agree with Harkorede, Liverpool will win, Barcelona will definitely will, Dortmund looks like a good team but we are talking about Barcelona here, yeah they had a big upset last year and lost 4-0 and got eliminated but even that was to eventual champions so its fine by me. Inter and Chelsea will be easy games and looking at their odds its not even that much of a shock.
I would really suggest not betting on todays matches based on past performances, neither Ajax nor Lille are the same teams they´ve been in the previous campaign, 100% "no bet" to me.