pretty standard to go full clegs for a smiter
first of all; you do max holy shield cause it adds the majority of damage, and the smite % is applied to that #
with clegs you get 33% crushing blow and a fast attack
full clegs is standard if your budget is half a sigons set and your opponents don't know what faster hit recovery is. below level 22 it isn't even a decent option for the crushing blow because of the 35% block, and once holy shield is available for block you have better places to get CB, and much better alternatives for the rest of the gear. Holy shield with clegs adds about twice as much the damage of a barbed shield, but keep in mind using a +2 weapon and shield adds 16-16 damage, and clegs sacrifices this bonus too. Base smite damage on a barbed shield is 18-35, base on clegs is 2-3. Level 20 holy shield with clegs adds 57-60 damage making your total base shield damage 59-63, while Level 24 holy shield from a +2 barbed shield and +2 weapon adds 73-76, making you base shield damage 91-111. Full clegs gives you 35% crushing blow, goblin toes give you 33%. Clegs allows for twitchthroe, a total of 40IAS on a base -10 weapon speed, while a barbed shield and flail or war scep with twitch+deaths can add 90 to a base -10. Clegs also leaves you with 70% block with level 22 holy shield (including a +2 amu, which adds an even amount of damage to either side of the shield debate), which is also cut by 1/3 when you run. A barbed shield has base 47% and can have another 20% from mods and with the +skills 36% from holy shield.
Clegs bonuses include 10ar/lvl and 15all resists on top of IAS and CB. A rare weapon and barbed shield can give you 40IAS, +2 skills, 39 all resists (and a possible 30 stack to one resist from the shield, or 150+def), up to 40 to 2 resists from the scepter along with up to 20str and more mods, and with just that weapon you can have the same attack speed as clegs and use an ornate+rare gloves, which can give you a lot of defense, stats, life, and resists. even with a magic +2barbed and 2pal40IAS scep, you'll still be better off than clegs. zaxien has a great defense smiter so if you're interested in that just ask him.
As far as cleg builds go, leave them to Fred for fun builds but don't claim that clegs is standard for anything, because it isn't, and it isn't anything exceptional either, because there's much better alternatives.
As far as holy freeze, don't bother with it for anything other than melee pallys and zons, because it doesn't help vs sorcs, and most chars will kill you before you do much damage to them if you use it. Additionally, smiters already die fast enough to barbs, slowing them down so they hit more and reducing your damage is just a bad idea. Ornate def smiters are fun for taking down barbs but much less effective than other chars.