Protein Powder (Shakes) for 14 Year Old Gym Goer

Hi there. I'm a boy turning 15 in 3 months. Just started a gym program to build muscle and lose some body fat, as I'm chubby around the belly and chest. I'm 5'11", weigh 82kg. I would like some advice on what protein powder(s) I should purchase. I was thinking of buying one of these for post workout: Max's Super Whey or Muscletech Nitrotech * Ripped * from xtremewarehouse. My friend and I go to the gym 4 times a week.

This is what we do:

Monday: Tris and chest
Tuesday: Biceps and back
Thursday: Shoulders and traps
Saturday: Either Legs or Cardio (20m running/walking combo on treadmill and 10-15m bike)

I eat healthily and don't have sugary foods

Thanks in advance

I've got the answer I need. Thanks for all your help.