maddenlol indeed your ping to stockton on tees will be more because your packets are being routed down to London then back up north, so you've got 21ms to get to Ghost gamer broadband+ 6ms to get back up north.
You've got the same problem I have, as per your trace route it's taking 21 ms for you to reach the GG broadband routers, so where ever you're trying to reach the minimum ping you'll have is 21 ms, it'll never be below that even if you're gaming on a London game server.
The problem you've got as I've mentioned is distance but also the handover from BT wholesale to ghost gamer broadband, based on what I'm seeing for my connection this is probably about 10ms of your 21ms.
There's no way to change this as far as I know and it's particularly annoying because as a 'gaming' broadband product where ping is everything this isn't mentioned i.e. we'll slap 10ms onto your base ping before you even start. This is not ghost gamers fault as such I'd be more inclined to blame BT for the slow / lame handover of packets that puts other ISPs at a disadvantage, but it would help if they made it clear before switching. Of course if you manage to get this resolved somehow it would be great to know.
The only positive you might have is low jitter and this can be worth something as I've experienced ping spikes from BT and seen evidence from other ISPs where latency is all over the place.
Your packet loss doesn't look good but it would depend how often that's happening, for that I'd do 'ping 185.60.112.157 -t' and watch the ping values and see if you spot any 'no response' message aka packet loss and watch for any higher values in the ping values e.g. jumps of 10ms or more - bad jitter. Or download ping logger and watch the graph, note though that ping logger defaults to pinging every 5 seconds which is slow.
If you only see a couple of packets dropped every 2 hours then while it's not ideal it probably won't affect your gaming that much.
Another utility I've used is
https://github.com/bp2008/pingtracer this graphs out the hops and makes it easy to spot where packet loss is occurring.
I'm really pulling my hair out because at the moment I can't see any ISP that's worth switching to that's going to give me a low latency / stable connection with a low latency into the core network. I don't have Virgin available so at the moment it's a flip a coin between Zen or Sky. At least with Sky I can move my phone and get a good deal.