I know that Rogue already get's an insane amount of skill points, and a little bit of a bonus to sneak damage when used as a 1 level splash (exploiters, for UMD, locks/traps, ect)...

I'm going to be splashing one level of either, on a 18/1/1 Monk/Fighter/??? With the Rogue Dillietant feat on a Half-Elf...

How would splashing 1 level of Artificer vs 1 level of Rogue work?

Both are 0 bab lvl 1 classes...
Artificer does gain a bonus at level 1 to umd when using scrolls (nice bonus)
Artificer does gain Traps/Locks/UMD at level 1
Artificer gains a fun pet (granted at level 1, not powerful)

Rogue gains sneak attack and more skill points.... anything I'm over looking?