See I have a very different perspective compared to most of you.
Home is where I feel I belong, so I feel very at home when I'm in
London. Indeed, I always feel somewhat out of place when I return
for the holidays; the 1st few days back in Singapore is guarenteed
to see me in a blue funk, if not an inexplicible rage. If I were to
go on memories then Singapore has nothing going for me anyways,
because all my memories about the place are bad, despite the fact
that only 20% of my life's been spent in London.
The1st day I arrived in London, I already felt at home, and not
lonely at all. The people here were very warm, welcoming, friendly,
and made an attempt at breaking the ice. It's probably a cultural
thing, because in my past experience, Singaporeans in the same
situation would keep to themselves, which could be why most typical
Sinaporeans would feel lonely when they go overseas. Personally
within a couple weeks I was already well integrated with the locals
and certainly having a ball.
Of course not to detract or criticise any of you, but how one's
overseas experience is, depends on perhaps 3 things ultimately:
1) The culture of the place u're going to.
2) What sort of personality and person you are in general with
regards to your feelings about Singapore.
3) Whether your departure from Singapore was willing, or due to
circumstances.
I can say that personally, seeing myself as being Singaporean by
birth only, and a rather unfortunate circumstance at that, I do not
have any problems leaving it behind for a place that is much better
and suits me more, nor do I have any problems mixing in with my
adoptive home and it's people.
Strange you mentioned how warm the Brits in London are because I
had quite a few Filipino nurses tell me that they felt more welcome
and at home in the UK than they do here. At least, when they
were new in their workplaces in the UK, their British colleagues
took time to chat with them, tell them about the neighbourhood, and
a few even got taken around on outings and drives! But when
they arrived here to work, they found the Aussie nurses more
standoffish, mostly not interested in you at all, and forget
about them taking their time off to bring you around.
I've never been to the UK so I can't comment but it's indeed
telling to hear from that many people, all with positive
experiences with the UK.
Hmm... come to think of it, the few close colleagues I do have
happen to be Brits! They are the ones who tend not to judge
us because of the colour of our skin and they will laugh along with
me and we can talk freely about anything... food, men, dating, sex,
money, family life, etc. 
Of
course I do have a few Aussie friends as well but in general, I
have found it easier to relate to the British, compared to the
'purebred' Caucasian Aussies.
All said, I'm not exactly keen to return to Singapore. I
do miss my close friends and my family, and of course the
food. But the weather sucks, the crowds suck, the waiting and
queuing and fighting to get on board public transport suck, and
most importantly, the lack of respect for employees in the
workplace and the high cost of living just royally suck.
I am proud to be a Singaporean... but strangely, my pride burns
the strongest when I'm offshore! 
