Mine is an older model, an a4tech f4.
https://www.amazon.co.uk/A4-Tech-F4-V-Track-Capability/dp/B006T59U4W
The oscar software for it is pretty decent. I needed a mouse and it was on sale when I bought it, figured I'd give it a shot even though I hadn't heard of a4tech before. It's turned out to be a solid mouse for my needs. Has a couple thumb buttons, the standard left click, right click, scrollwheel is a 3rd button and it has a 4th small button at the top between the left click and clickable scrollwheel. It has an adjustable weight set with 7 small weights to make the mouse a little heavier or lighter if you want.
There's a little bit of acceleration with the mouse, it doesn't track absolutely perfect the way some gamers prefer. I don't notice it and use it for gaming, photoshop work and basic web browsing without issue. I've not noticed any missed shots in games or anything because of it but then I don't play competitively. I use a little mouse acceleration within windows anyway so I can move from one side of the screen to the other (1080p) with just a flick of my wrist. The dpi is adjustable if more precision is needed.
I'm not sure where you're from or what stores/sites you may have access to. If you can use amazon it might be worth checking around and comparing prices. I know you mentioned euro, the site I provided was uk so was in gbp's. There are similar mice to the one I have, I'm not sure how they differ exactly but there's the sharkoon fireglider for around 10gbp less than the a4tech f4 and there's an a4tech xl-747h with a different logo painted on it for around 5gbp less. If that's true in euro's as well there might be very similar options.
It's hard recommending mice, something you'll be controlling directly for ease of use, personal preference in fitment to your hand. It's whatever works for you. I've used trackballs in the past and I'm not fond of them, I find them tedious and a pain to use. Mikeandike on the other hand it seems to work well for them. In that case a trackball wouldn't be a good fit for me and a more traditional mouse may not be a good fit for them.
Here's one article that talks a bit about the differences between optical and laser mice, the acceleration issue I mentioned that some gamers don't like etc.
http://www.pcgamer.com/gaming-mouse-myths-busted/
The mouse I'm using (f4) is laser as are all those a4tech's you listed I believe. I'm not sure about the logitech, I think it's optical. In this price range it may be more or less nitpicking, nothing in a lower to mid budget is likely going to be the absolute best in all areas.
It may also be worth skimming through reviews for the mice to see what owners have to say. Some reviews/feedback are pointless and I don't think reviews are a perfect way to determine the quality of a product but when things keep popping up there may be something to it. Overall the logitech g100s for instance seems to get decent reviews (at least on newegg). A number of reviews mention a problem with the left click. On just the first page of reviews, one person says after 5-6mo the left click is difficult to register, the next says 'left click not registering half the time after 3mo', 'after 23mo the left click is beginning to fail', 'after 4-5mo the left click button started requiring more pressure to use', 'left mouse button died after 2mo', 'starting to miss clicks after 2-3mo'.
All that was only from the first page and I'm not trying to bash logitech. I've owned a number of their older plain mice and loved them. However when so many people come back with roughly the same complaint there may be something to consider. Maybe quality control isn't there on that mouse, maybe they had a run of bad switches failing early, I'm not sure. But a consistent issue tells me there may be more chance of having a problem with that particular mouse.
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