Gooseberry varieties and loganberries?

I've got a row of soft fruit that's badly in need of renovation. There's an overgrown quince, a couple of gooseberry thickets, a couple of redcurrants and about half a dozen blackcurrants. I don't like blackcurrants, redcurrants are okay but generally I think currants are fiddly. I do like gooseberries and one of the gooseberry thickets still crops very heavily but is badly in need of some renovative pruning (any advice or tips, please tip away, I go braindead when faced with something that needs renovative pruning). The other gooseberry thicket still has a useful crop and I will have a go at some renovative pruning on this as well, but it doesn't look as healthy and vigorous as the other one and I think it's coming to the end of its life. In the middle of this lot is my free morello cherry tree that I planted this year.

So, my master plan is to get rid of all the currants, sort out the vigorous gooseberry, do some pruning on the other one but plan to replace it with new stock. I'll probably leave the quince but with a severe haircut (and I'd love some advice here as I've never touched a quince before). To restock the bed, I'm thinking about loganberries but I have to admit I've never tried one. If I like raspberries and blackberries, will I like loganberries? Are they easy to grow? Do I need more than one? The rest I'll fill with new gooseberry stock. Any advice on best varieties? Wyevale has Hinnonmaki red, green and yellow, plus Invicta. T&M does a collection with one each of Invicta, Xenia and Hinnonmaki yellow. Any views on these varieties? Any other varieties that are better?

Any advice or suggestions would be gladly received.

A quince is a tree, which looks like an apple or pear.

Have you got a chaenomeles, which is sometimes called a Japanese Quince?

I understand the fruit does not have much flavour - it is better grown as an ornamental.

Gillie

Logan berry and Tay berry are similar, I have both and cannot tell them apart. If you go for one consider the thornless variety as they otherwise have a good selection of thorns on them. They crop the same a blackberries, on second year growth. Canes can get to 10-12 feet long, even more.

Gooseberries crop on old wood, so if you prune the vigorous one then the first year you get new growth (wood) and no goosberries, so be aware. Various ideas on how to prune. Most common is "open bowl". Basically prune to be cup shaped with not a lot in the centre.

Not sure how good it is as the ones I have are more "umbrella" like, as in a central stem and main branches coming out horizontally. Works well for me.

Not sure if they can be trained to something like a cordon etc.

Would suggest keeping the currants if there is the space spare, could always produce jam from them. Basically if the space is doing nothing why not.