Whats a good bike

Hey all. I'm 16yo 6'1 160-165 pounds. I'm looking for a bike that I can grow with in terms of weight and skill. I was thinking 125 2 stroke or a 250 4 strokes as per my more experienced friends said would be good for me. My dad however is saying I should start with a 125 4 stroke. Thanks for the help (Edit) I'm looking for trail