Review! Pricing is an estimate only(brain not quite as sharp ^^)
Bobbi Brown Gel Liner (RM80+ factor in a brush from Sasa)
It's good! No smudging or disappearing. Lasts the whole day. Decent colour collection. My favourite was Espresso ^^ Easy to apply but will dry a little after age.
Kate Gel Liner (RM 50)
Comes with its own brush. Smooth application. I didn't like the fact that it was powdery. Not quite gel in my opinion. It's like taking a wet brush to loose pigment eyeshadows. Smudges a little so don't try to run around with it too much. IF you keep in air-conditioned environments it will be fine

ZA pencil liner(RM 20+)
Strong colour! Black means black with only one application. Sadly it smudges with just the littlest twitch. Works well i guess if you have Benefit's She-laq to go with it but that costs and arm and a leg.
Shiseido PN Automatic Liner (RM 98)
SO nice *__* and also a little bit sparkle to it. Not angeldust sparkle but more like Mica sparkle. It should now be the Maquillage line. Nice colours. minimal smudging but has a bit of flaking.
SkinFood Black Bean Eyeliner (RM15)
Smudges alot. I like the smudge sponge they have on the other end tho. Good for lining under the eyes just a little for that smoky eye look.
KissMe HeroineMake Liquid eyeliner (RM40)
My favourite at the moment. Blacker than night. Smooth and quick application. Mistakes are easily soaked up with a wet cottonbud. The thin brush makes detailed work and colouring between lashes(or fake lashes) easy as pie. Doesn't smudge, doesn't streak, doesn't rub off (unless you rub awfully hard). Doesn't even come off if you cry! Even after all that, it washes off with warm water and regular face wash ^__^
Majolica Majorca Automatic Liner (RM45)
Wonderful! Second favourite this one simply because of it's wide range of colours. The brush is not as thin as the KissMe one but still can be handled well. It's a cheaper version of what Shiseido has(same company anyways). The sparkly black is a nice colour. I like it in brown ^^ Doesn't last as long as the KissMe one and is prone to flaking if not touched up every 4-6 hours or so.