Heres my top 5 just "easiest" arranger list ....not "sound ect" thats another list

Roland
Ketron
Yamaha
Technics
Korg

Yamaha is the best operating system for an arranger. The SMF playback of older GS ( roland) files is inconsistant, but your question was easiest ARRANGER, right?
No contest - the yamaha is the easiest to get around with. Style buttons, mixer funtions, voices that don;t cut off when you change voices etc....
The G1000 is a deep instrument, but not the easiect to navigate. The Keytron stuff is a close second, and then there's Roland, Korg and Technics tied for third in my book.

No ONE intrument has all the bases covered, but Yamaha comes closest in ease of use and above average sounds.

i have owned several and previewed many others.
the old KORG i-series is BY FAR, once you learn how
to use the number method, the easiest and smoothest
and most flexible to navigate live. i still have the 2 is-35's
I bought in 2000 as my main axe, in spite of trying for
years to find "upgrades". all the sounds may not be as
good as newer boards, but i have tweaked and tweaked
mine (easy as pie to do) so they are acceptable. the fact
that you rarely see an i-series korg up for sale anywhere
attests to the fact that they cannot be matched in many
ways and owners won't let them go. I have loved a lot of
features of more modern kb's i had better than the is35,
yet I let them go and still have the 2 i's....and evn if i buy
a pa800 or sd5 or s900( 3 kb's i am pondering now, I will
NEVER let my workhorses go. in fact, one of them lost
its lcd screen early on when i foolishly removed the speakers to lighten it, yet i can still navigate and play it
with no problem on gigs. Can you do that with your kb?
I just can't do sound editing on it, so i use the one with the screen for that and then just save it on a floppy and load it into the other kb.


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Miami Mo

Looking back at my previous comments and moving onto newer boards..I still must say my G1000 was the easiest to use on a job...

I am sure the biggest part of our decisions of the easiest...is what we are use too.

I have never considered the Yamaha as the easiest OS...far from it if you need to make edits live while performing...here is where Roland shines..

Even Ketron and Korg, I find are easier to use live, but I still do not care for either of them when it comes to saving and searching data..

I am sure the G70 will become second nature to me soon, but giving it's additional features[except the missing chord sequencer]..it is a little more complex to use live compared to the G1000..

From the current top arrangers on the market here's my offering:-

Yamaha T2
Ketron SD1+
Roland E80
Roland G70
Korg PA1x pro

Fran zuki asked for use in a live performance, I don't class a G1000 using SMF for playback as live, but when I had the G1000 I would certainly place it between the T2 and SD1+