Moy,
This is both my personal opinion and my strong advice to you.
When the time comes that you are able to apply for British Citizenship DO IT.
You will be able to apply for British passport which offers unbeatable opportunities for unrestricted travel (as a minimum).
Now once you have taken up British Citizenship then "technically" you have given up your Philippine Citizen status. Plenty of people will tell you not to say anything, just continue with your Phils passport and don't mention British. That's all OK to a point BUT totally unlawful and will eventually come to bite you in the a**e big time.
Philippine nationality law is now very nice for you. Just take a nice trip to London, take time out of your busy London shopping/tourist time to attend the very brief Philippine Citizenship Oath taking ceremony and voilą you are a Citizen of both Philippines and UK
One of those select few who have legal dual nationality.
The very BEST of BOTH worlds so to speak. What a treasure to hold.
Lucky you (but only if you take the time to do it) with NOTHING to lose and Everything to gain.
Whoopie
Do it!