I have possibly the only family in ireland which has nobody abroad lol, bar a couple of football matches there is not many places ive even been to in the uk.
Where would people tend to recommend heading for???
Hard to say without knowing what works best for you. Have a look at the thread that Steve started regarding the best places to go bankrupt in the UK. Other than that I would suggest perhaps looking first at areas where there is an established Irish community as that would give you the support of Irish centres which are experienced with helping people settle in (and with that I mean practical advice and direction as well as a potential social scene, human sympathy is important when you are alone and far from loved ones). So Manchester, Liverpool, north London etc. In fact - get in contact with them beforehand. Find out as much as you can before you go and it will mean you have a contact in the UK when you land ... even if it isn't one where you could crash on the sofa!
Again look at the things you need first, accommmodation and a job. How expensive is the first and how available is the second. As you are (I think) planning to sell your car, look at the local public transport too. On the whole, having spent quite a bit of time in the UK, public transport is very good - much better than you'd believe if you only listened to English people

It can be expensive though, intercity train fares are generally much higher than here unless you can book in advance and the London Tube is very expensive if you don't get yourself an Oyster card immediately. One other thing to watch out for is whether the price for accommodation is quoted per week or per month, London it is generally per week!
I have some questions if anybody can answer, just stuff going through my head really.
Can i come home to visit the kids regularly (if funds available) from the UK.
I presume i would not be entitled to any benefits or rent help in the UK till i got on my feet/if i ran out of money while there?
I have spoken to my ex partner over the weekend and i think she is going to go for bankruptcy rather than doing nothing here in ireland, Is it possible that i can file for bankruptcy in the UK and my ex do so in this country??
Yes, you can come home to visit your kids, however given the restrictions on credit etc. when you go bankrupt travelling might become more onerous to arrange (ever tried paying cash for a RyanAir flight?) I am not sure if you can do this but it might be worth booking a set of flights in advance of going say one weekend every three months to come home to visit them. It might not be as frequent as you would like but you'd have them to look forward to. And with the ease of travel between the UK and Ireland travelling back once every three months to connect with your children shouldn't seem unreasonable. The other thing to consider is that your first task is to establish COMI, that will take a few months, then you apply for bankruptcy.
Insofar as I understand it, if you are entitled to job benefits here you are entitled to job benefits there, I am no expert in the matter so I would ask more questions if I were you - particularly given you have been self-employed. Being bankrupt is not criminal and you shouldn't think of it that way. Yes you are reneging on debts that you contracted but you are doing so because it is impossible for you to pay them off, you are not attempting to profit at anyone's expense. While it is not a preferable route to take sometimes there is simply no other option and you have to make the best of it. It is simply an orderly process to unwind a difficult and intractable financial position. You are still entitled to earn and live but you have to comply with restrictions (particularly around credit). This isn't Dickensian London with the Debtors prison looming large and you are not
Mr Dorrit, locked in for a debt he has no hope of paying.
You and your ex-partner can apply for bankruptcy in separate jurisdictions as far as I am aware anyway.
Highly doubtful i will be going with steve or any other specialist due to money and the lack of it, thanks for the reply though.
As Luternau has said, Steve Thatcher is very good about responding to questions about bankruptcy on this forum so no harm in asking a question - if you don't try, you never know. The worst anyone can do if you ask a question is say no. But most times people will answer if you ask.