The Philippines is not setup to "standards" like most 1st world countries are. And I mean for anything. It's not like you can just go into a Holiday Inn or a Comfort Inn or some other chain and have a real good idea of what to expect. Even chain hotels/motels here can change drastically from location to location.
Read the reviews. Look hard. Tina and I are in Manila right now. After using Shogun Suites(great deal and nice breakfast) most times when here, we tried a condohotel at Sole Marie Parksuites that sits in the MOA area(in one of the many condo towers there now) ad for about $40/night have a studio condo all to ourselves. Kitchenette, full working bathroom, 100(about 80 really) channels of cable on a HD 32" wall mounted flat screen, high speed internet and all. This is where we'll be staying for now on if available.
Sure we have to get our own food from SM(or elsewhere if wanting to drive further) and cook it, or go to any of many restos that are very close by(McDonalds, Greenwich pizza, or any of the who knows how many in the MOA).
Tell you what we do, and it does take a bit more time. We go to google, search hotels in manila, then open the map option. From there we get to see every hotel just about, as well as some of the bnb options and can see where they are located. Then chose the area we want, and click the options one by one and research them.
Also, if you want to stick to the 3rd person companies to find what you want, there is also agoda.com. They might be the best deal for you yet.