My favorite champions are Ezreal and Vi.

I bought Ezreal and the Pulsefire skin the day that the skin came out. At first I hated ezreal, and I thought I wasted a huge chunk of money on him. After playing him non-stop for about a month. I finally gave up. I told myself that i wont give up playing him because hes hard to play. So I kept playing him and eventually got good with him. I now consider him as my favorite champion and do very well with him. So ezreal is a very good buy because of his quick combo and built in flash ability. Vi on the other hand is a straight up BEAST. She is a lot easier to use and does a lot in fights. I personally can do very well with both of these champions, so I will let you decide.

how about jayce if you cant decide hes ranged and melee. You can also go ad or ap.A lot of fun