Where should i go?

I have got a call from a firm for articleship that firm is offering me work in every field , ' tax , audit , law etc. And i will also get a chance to go outstation, the firm turnover is around 10 crore and i have to give my answer to them till Saturday but i was thinking to apply in other big firms like lodha , ayier, luthra, dinodia etc. Please help me should i apply in these big firms or it will be just time waste ?