Foreigners are like foreigners everywhere, I guess? It depends a lot where you go. There's way less family tourists than for example Thailand; a lot of backpackers and couples, and strikingly many sex tourists and older white men with filipina wives. There's less tourists in general than in mainland SEA.
As for the locals, how they see you differs heavily with where you go. Filipinos are generally very friendly and down to earth. In cities you get some hassle from gold diggers etc, outside of cities in more touristy places people are used to white faces and you get no hassle at all really. In some more out of the way places white faces are a novelty and you can get stared at, kids might run after you and you get the whole "ooh it's a white guy" reaction.
Travelling solo, it's really easy to talk to locals, especially since pretty much everyone speaks English. My first week in the country I ended up randomly meeting a group of filipinos in Manila who were vacationing and celebrating a friend's 60th birthday. Ended up getting hammered with them in a Manila slum and travelling with them for a few days in the north heh.
If you just want to chillax it's hard to beat Palawan and El Nido. It is extremely beautiful and perfect for just taking it easy. Any of the Visayas islands will also fit the bill. You'll find most tourists in Boracay, Bohol and Malapascua, less on Siquijor or Negros, not sure about Iloilo or Leyte as I didn't visit those.
Boracay is the typical tropical paradise party island and the main tourist destination in Philippines aside from Manila/Cebu. Bohol is a bit bigger, famous for tarsiers and some uninteresting brown hills plus some very good diving. Malapascua is a smaller paradise island, mostly a diving destination as well though there's plenty of people there just for the sun, plus Koreans doing their best to avoid it. Siquijor is very nice and quiet, most tourists there stay on the beach of whichever resort they're staying at and there's plenty of those, no night life there tho.
In short, if what you want is a tropical paradise it's hard to go wrong with the Philippines.