brother dont go for a hero 70 coz they have given crap in 2011.2010.
honda is always a better option u can go for it but it will cost you a bit higher. other good options can be ravi premuim r1 70cc, dhoom 70cc.
and remember 1 thing whatever u buy keep it well maintained it will give u performance. my friend is keeping a zxcmo 70cc from last two years and its going perfect, and if u ask, most of people wouldnot recommened a chinese bike, 70cc bikes are not meant for racing they only problem is we r only left with 70's and 125's. decide totally what u like.... all here are JUST suggestions