Holy Knight & Guardian Skills and Weps

[crystalblueheart]

I was wondering whether to go holy knight or guardian on my cleric. I know many of you will say that it's too early to think about it because I'm not even half way there. Also, from what I've read from numerous guides and previous discussions, Holy Knight is for pvp and those who want to solo (but at that level most people pt) and Guardian is for ones who want to help keep everyone else alive, etc. I know that clerics aren't built for pvp but I still enjoy that sort of thing even if I don't always win xD HK is a mace user and I'm a hammer user. I would probably choose HK but is it a bad idea at this point? D: It is strange to me that the HK's weapon isn't a hammer because maces deal less damage....Will I not be able to get used to a mace...has anyone here switched weapons? If so was it difficult? so should I:
A) Go HK and switch my weapon to mace and buy Bleed at lvl 50
B) Go HK and switch my weapon and buy my skills when I hit lvl 100 so I can level faster now
C) Go Guardian instead <----I'm thinking this is the best option.
Which skills do you get/can you upgrade when you choose each of the classes? I thought I read somewhere you lose a skill...or maybe it meant that you can no longer upgrade the skill?