New to boating life. Looking to purchase my first boat. Looking to not spend more than 7k and found these three that I'm considering. All are well taken care of but used with minor cosmetic problems. 
 

1) 1997 champion - '97- 150 Mercury. Old screen and troll motor. 18 feet long. 

2) 1994 stratos xl pro- '92 -200 mercury. Older screen. Great troll motor. 18 ft. 

3) 1999 triton - '98 - 115 Johnson. Nice electronics. Nice troll motor. 18 feet long. 
 

all run great. 
pros and cons, trying to learn. 
also this is the first boat and If I use it like I hope I do then down the road I'd be more willing to spend more. So resale could come into play eventually. 

Watch this first...

 

 

You could always build your own.

 

Wait....what!

All things being equal I would take the Champion.  They were very well built boats.  

I like the champion hull the best out of those but more detail on the engines, hours and condition are necessary to have any real input.

You may choose by speed. Do you want to go 40, 50, or 60 MPH (give or take a few). 

This is kinda like asking someone to help choose your wife !!!