We made the move from living in London (near Balham) to Surrey (small village near Dorking). We absolutely love it.
To address your concerns:
- Our train starts in Dorking, so we always get a seat in the morning. On the way home as long as we get to the station a few minutes before train departs we get a seat, but if we turn up as the doors are closing yes we have to stand for a few stops until people get off. Also depends what time we go home - if we go home a bit later (ie after 6.30pm) then we tend to get a seat. It's only the trains between 5 and 7 that are really busy.
We are on the train for 45/50 minutes. I like reading, so the time actually goes really quickly and I actually quite enjoy it.
The train is normally quite civilised too, just commuters.
Not really had too many delays yet, just the odd one when there is a person under a train or something. However as we can travel from either Waterloo or Victoria on different lines normally one or the other line is working ok.
- The time it takes to get to the office (in my case Waterloo to Bank) is rubbish. Waterloo and City Line is dreadful. Best bet is to buy a pair of trainers and run.
- There are no chavs in our small village. Well I have not seen any! Yes I have seen some 'chavs' in Dorking but on the whole it is nice and yes you do get chavs everywhere . There are a lot less really dodgy looking people / people who I feel threatened by here than in London.
- We got a large 3 bedroomed house for the same price our shoebox flat in London went for. So we got much more for our money. Yes Surrey is still not cheap but the nice parts of Surrey are cheaper than the nice parts of central London. We have a big garden now too.
- Whether you get lonely is partly up to you - if you are prepared to get involved in the local community, join clubs etc and make an effort to meet people I don't see why you will be lonely.
I do miss out on some stuff going on in London (I often choose not to go to social things happening in London at weekends as I can't face the commute on the weekend as well as Monday-Friday) but I have made my own life outside of London so I am not too bothered. I will sometimes go into London if its something important like a birthday etc.
Also some of my London friends love coming to stay in my country pad too so I actually see more of some of them than when I lived in London!!
Overall I think a lot depends on what kind of people you are - DP and I are real country folk - we love waling the dog, I horse ride, we both run and cycle a lot so it really suits us being in the sticks. We felt really trapped living in London so living in the country is just amazing for us. Also Dorking has a cinema / theatre, gym, swimming pool, couple of restaurants which is enough for us. However if you are 'City' types who like nice coffee shops, funky restaurants and bars, shopping etc then you might be better off staying in London. It's a really personal choice.
Good luck.