Regarding Premier league I think Chelsea is still strong and can repeat the title victory from the 2016/17 season. Also Real Madrid is a strong team and with the great goalscorer Christiano Ronaldo they will win yet another Champions league title according to my opinion.
For the EPL, I believe Man Utd/ Chelsea could win it. Arsenal has already lost to Stoke, Man City look heavily reliant on Aguero who is a crock. I am leaning on Man Utd, as I am a Man Utd fan, also because Conte has shown discontent of Chelseas lack of activity in the transfer market recently, but If I am too bet, it would be between Chelsea and Man Utd. For the Champions League, I'd say Real Madrid are heavy favourites. Barcelona look weaker by the day thanks to board mismanagement. I'd say other teams that may win it would be Juventus, PSG, Bayern Munich
I think Manchester City has the biggest chance of winning this year league. Although I am a big fan of Manchester United.