How do these two compare in Asia? Do they have similar standings when it comes to employability? I've looked at some rankings and they're usually fairly close. I'm looking to specialise in Corporate Finance and I'm looking into schools in Asia that'd give me the best launching point, so I'm interested in how these two are generally regarded. Thanks!

You might want to focus on where you want to be based in the future first. There is no post-study work visa available in SG while most non-local students can apply for the IANG post study work visa in HK. You should also consider CUHK MBA in addition to HKU MBA. These 2 institutions have the best reputation among local employers as well as worldwide recognition and history.