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Never go for the fancy shimano one.
If you had used them in the past, and haven't change the housing, then it's quite likely the resin from those poo brown cable have been left inside the housing creating friction (ironic I know, but I've had customer bike returned due to this).
Just make sure the cable housing end is cut neatly, and use this to ensure the cable is feed in at a good angle, (4th one from the left, the one with a really long housing).
Ideally, you'd want to replace your cable regularly, not leave it until it start to get worse.
All of the Shimano shifters does that, that actually not too bad compared to the old 5700/6700.