The best crypto currency to mine with a cpu?

I have started mining litecoins today and I haven't got a brilliant hash rate. I am looking for a crypto currency that would payout ok and hasn't got a high difficulty. I am using my laptop to mine which has an Athlon 2 m320 inside it and a HD Radeon 4200 (Which I know cant mine with). I am looking around and seeing that I am not going to get a brilliant amount of litecoins so if anyone could help me and point me in the right direction and maybe a tutorial I would be immensely grateful.
Thank you in advance.