I should edit
I have two paladins with max and quicken: one is a 18 pal/2 fighter intimitank who has about the maximum available armor class (raid buff 83). That's the build that the OP was working from:
http://forums.ddo.com/showthread.php?t=175058
The other is a twf /2 monk dps build with no ac and a ton of guard damage items. Both are designed for self healing with the same feats, though the second has enough ap to take a higher level of paladin devotion:
http://forums.ddo.com/showthread.php?t=204161
the first character is totally sustainable, and can solo elite shavarath quests and gain sp in each room (say, of sins). The second doesn't have the torc but I dont expect her to be quite so sustainable.
My first character has no concentration (all his sp went to intimidate and umd, as Im sure yyou're familiar with), and a 14 concentration score means even a grazing hit can force a concentration failure.
if you wanted to rely on lay hands to heal yourself in mid-melee, you could, but if you want to be able to tank 15 orthons at once and heal yourself through it, you will need quicken
My intimitank paladin can run through sins of attrition without any invis item until red alert happens, stop and stance, and with power attack dps through every mob while gaining sp for his trouble (half the mobs get stuck and dont teleport anyway, so its faster than full clearing). without quicken, this jsut woudlnt be possible
My paladin's feat selection doesn't involve any thf feats, as I almost never use two handed. I never bothere dto make a separate 2handed dps weapon (i was a pierce-spec with wop rapier and only using a min2 khopesh, so I didnt have ic for any two-hander to justify making one), and my lit2 is better than any 2hander I have due to the extra damage.
I've thought about including it for epic, just to dith the -2 to hit from the tower shield, but I've never really considered adding thf feats for dps purposes; the gain is too marginal on a build that's not focused on its secondary dps to be worth multiple feat slots.
Some extra glancing blows against arraetrikos and nythiros are not a significant reason to burn multiple feat slots imo.