This is great. For me, i will choose company B eventhough the company just commences their business few months ago, but still they offered quite amazing opportunity such as promoting you into a higher level of management and at the same time, you will grow together with the company. Besides that, the offer of having a 2 days off on weekend is certainly a plus as you can have more quality time with your family and maybe can do a side business at the same time on weekend. Meanwhile, in terms of salary, i can bare with it because if you work hard and smart, for sure the salary will get review again by the upper management.
Here is mg point of view.. Harap da mengena lah.. Hahahaha