what's the best way to play this?

I'd do a 1-2 and then slide my 1 up the strings

 

I would imagine the best way is whichever one works for you... personally, I'd play it 1-2-1-2.

 

Ya, 1-2-1-2. No raking. Raking bad. Alternation good.

 

1 2 1 2

 

unless you are trying to get your 3 finger picking up to scratch, in which case just practice 3-2-1-3 until you get it. string skipping like this is the hardest part of getting smooth 3 finger picking down, IME. (i assume form your original post you are using 3 fingers normally)

 

3-2-1-3, 2-1-3-2, 1-3-2-1

or

1-2-1-2, 2-1-2-1

or

4-3-2-1, 3-2-1-4, 1-4-3-2

Depends on how many fingers i wanna use, and it's very important that you develop a plucking pattern which will become muscle memory... just plucking randomly is not good, nor is raking...

 

what he said

 

1212
or...
Open hammer-pluck : (l)1 (r)t (r)1 (r)2

depending on context.