You can check the total stats of a pokemon in this site : http://pokemondb.net/
The bigger the total number of its stats ,the stronger the pokemon is, but thats not always true.
For example: alakazam has 50 points in attack that are useless, since it uses special attack(very high special attack stat), I prefer those pokemons(only physical or only special attackers) since you can pick a nature that reduce the one and increase the other stat. In other cases if you wanted a pokemon to be physical and special attacker too, you would have to reduce special or physical defense or speed. I would be in a lot of trouble deciding that
Example: raticate has 413 total stat while snorlax has 540,both normal types. guess which one is better. but you cant have snorlax in reborn yet