Well, i have narrowed the choice of 125 scooters down to two,

Both are basicly the same down to about a £5 price differance.

But,

One has a Disc brake up front and Drum at the rear. The other has Disc's front and back.

So advice please, what would you have?

What are the scoots?
My first bike a Honda CB350SG like a super duper dream / dispatchers delight - had twin disks up front - really good brakes, loads of feel, and a drum rear, real nice in the wet, and added a lot of control, especially at low speed, and especially as a newbie!

other factors would / should be more important to sway you choice....

what scoots

my lead had two drums my zip has a drum rear disc front

i stop quick enough

Well until New Year I'd never ridden anything with a drum rear, but the SH has one and I'm actually very impressed.

Perhaps only real way to choose is ride both, but given how weedy many rear discs are the drum could be more effective. But having said that if the scoot has a small rear wheel you may find it locks up more with a more effective drum brake, so actually counter-productive.

So to summarise - it's up to you

Drum brakes are quite efficient and if you servo assist them like modern disc set-ups, they are almost too good.
They do lack one feature that disc brakes have, in that water badly effects their efficiency. They don't self dry like discs, as unlike discs the shoes do not gently rub the drums all the time therefore warming up and always being dry, and also have 'free play' to take up before actually doing anything.
Don't let the difference between disc and drum overly concern you, but look at the connection between lever and drum and work out if it makes for a more complicated and higher maintenance system than a conventional hydraulics. This is the deciding factor.

A rear drum would be my preference over a disc.
Rear calipers tend to need a fair bit of cleaning and maintenance during winter, a drum doesn't.

I prefer discs - mostly for ease of maintenance

As a couple have asked, they are both SInnis,
one is the Eco City 125 discs F/R. the other is the Matrix 11 125, discs F/ drum rear.

http://www.sinnismotorcycles.com/scooter_range.php

Eco City has larger tank & the taller seat may provide more legroom, difficult to be sure from pics alone though.

Can't really see but have they both got dual rear shock, as long as no other major difference, think I'd take the Eco City.

I was leaning towards the Eco city, just because of the brakes,
Will have to see which is my comfy for me.