i would only put holy shield and hammer of the righteous in a castrandom macro. the other spells are a bit too situational, even consecration, to add to that macro.

i have /startattack with hammer of wrath.
i have consecrate and avenger's shield on modifier. i find this really helpful if i see some passerby that i also want to add to the "being tanked" group. consecrate costs a lot of mana so i dont want to constantly spam it, even with awesome mana regen.
my judgments are based on modifiers as well as seals.
i think thats it. all my other pally abilities are clicked as they are not as time-sensitive as my battle abilities.