Don't take that Financial Times ranking too seriously, and any other "generalist" university/program ranking for that matter.
Most of the time the criteria they use are BS and some universities are not ashamed to improve on those BS criteria just to climb the ladder.
Perfect example: LSE. Because it's a university that only teaches social sciences, it doesn't even appear in the FT pre-experience ranking. The system favors generalist universities, i.e. universities that teach "everything" basically. But when you look at the numbers, the recruitment in London, in Front office positions, the brand name of the university all over the world, LSE is top 5 easy. Check out the QS World university rankings, where they rank the programs according to faculty or subject. For economics/accounting/finance, LSE is top 3 in the world, up there with Harvard, MIT.
All this just to tell you to not decide where to go based on that ranking.
Now, regarding Grenoble, I don't know it that well. I'm sure it's a good program but it's in France, and in France, the big boys are HEC, ESSEC, ESCP, maybe EDHEC and a few other elite programs.
Then again, the best way to find out about the program is to find alumni (Linkedin, FB), search online, ask your teachers, etc...