I don't think now is a good time to get a new phone from Globe, and I don't think the 6S and S7 Edge are the best choices from Apple and Samsung, respectively.
First, Apple is announcing the iPhone 7 mid-September, and it should be available in the Philippines by Oct-Nov. While the iPhone 7 will look the same as the iPhone 6 and 6S, it will be more responsive thanks to upgraded specs, and will also have a significantly improved camera. Apple is also rumored to drop the 16GB base model which is really insufficient for pictures, music, and apps, and willl ship the iPhone 7 with at least 32GB memory which is liveable. It will be pricier than the iPhone 6S, but of course it will also have better resale value 2 years down the line so it's okay.
For Samsung, you might want to wait for the regular availability of the Note 7. The Note 7 is an improvement over the S7 Edge because of its highly useful S-Pen. Even if you don't maximize the S-Pen, you'll appreciate that the Note 7 is easier to hold than the S7 Edge because its edge screen is curved less sharply. The best part is, Globe is selling both phones for the same price when bundled with a plan - unlike in other countries where the Note 7 is about 5k more expensive.
My personal choice is the Note 7 - I've been an iPhone user for several years now, then got myself a Note 4 last year. While the iPhone is still easier to use for basic tasks (texts, calls, Facebook), I'm disappointed that there has been nothing new with Apple for the past 2 years. The Note 7 on the other hand, offers dual-sim capabilities which is a must for me, has a bigger screen with more vivid colors, and an S-Pen that's very useful for taking down notes (I don't even bring a notebook to meetings anymore as I use my Note for that).
I'm just waiting for stocks of the Note 7 to be available at my preferred Globe store.