Unless you use SuperMacros, Macaroon or IS Boxer (or another addon to raise the macro cap from 255 characters to 1024 characters), you only have space for: reset=x, not enough characters for reset=combat.

Place 1 point into improved Judgements.

Your 9 second abilities are:
A1 Consecrate
A2 Holy Shield
A3 Judgement of Choice

Your 6 second abilities are:
B1 Shield of Righteousness
B2 Hammer of the Righteous

A's can be any order, as in A2 then A3 then A1.
B's can be either one first, then alternate.

I go with: A2 - A3 - A1.

The full sequence is A's twice, with B's in between.

So for me it is: A2, B1, A3, B2, A1, B1..... A2, B2, A3, B1, A1, B2.

You have just enough characters for reset=x and either Judgement of Wisdom once and Judgement of Light once, or Judgement of Light twice (which is 254 characters).

I personally like to use /Click to call my 96969 macro.

Calling Macro:

#show Holy Shield
/stopmacro [mod:alt]
/startattack
/click MultiBarRightButton1

This is purely for the extra characters.
The option to stopmacro, by pressing it with Alt (which means only the shammies cast) for mobs at range which will be dead before they close to melee range.
And the /startattack in the macro too.

My full macro is in the wiki.

I like consecrate last, because it is a mana pig.
If a mob is dead quickly, mana is not wasted.
If it will be an AoE pull, I can do an initial consecrate.
And follow with my 96969 macro, and have consecrate refresh before it is called in the macro.

I like Holy Shield early, but if mana is an issue, you could have it as the 2nd cast.
Which means you'll take a bit more damage.
And be healed for a bit more, which is extra mana from Spiritual Attunement.