LSBF or BBP to pass ACCA?

Hi all! I'm thinking about passing an ACCA exam and I have to choose where to pass it. As there are lots of people passing this exam I think this forum the best place to ask that question. So share your experience and thoughts please.
I have 2 options: lsbf and bpp. They offer almost equal opportunities but lsbf also offers pass first time guarantee for ACCA exams which seems to be quite beneficial. Please help we to choose where to pass this exam.