The position in fig 1 was found 55 times in the collection of 5172 games. The position in fig 2 was found 17 times.
In both positions the most frequently played move is tenuki
(respectively 31 and 6 times) although in the second position playing
tenuki and defending the corner at
[b] have the same
frequency. Thus, in the first figure defending white's position seems
more urgent than in fig 2.
In fig 1 an attack starting with
[b] seems a
good alternative (10 times).
When defending the keima shimari the tobi to
preferable. When defending the ogeima shimari the sagari to
[b] is more efficient.