If you had a budget of $300,000 for initial production, what programming language would you use to produce "web software"? Like, Quickbooksonline.com, Turbotax, inventory control, GIS, or other data management.

Ps. I'm not a troll. This is a real decision I need to make. I'm not a professional programmer, but I've built a "web software" to manage our company, and now we *need* to take it to the next level. We have some highly experienced programmers that say finish it out in the current language, and some say to start over. So, if I were starting from the beginning, what would be the most ideal situation?