I do not agree with you Shrike, in an very high competitive tournament, yes
DA aren't so good, but if you don't face the so called "auto-win" lists (flying circus, o'vesa star) every game you play, then with the right list
DA can do pretty well.
Yes we have some useless units, yes we have some overcosted units, but with right choice we are almost as competitive as vanilla marines. Few examples, white scar grav bike spam list? few rifleman dreads, maybe one or two
devs, with a librarian or two with PFG, behind a
ADL and say bye bye to the bikes (personal experience). Next, you deploy the centurions? no problem, you'll face 10 plasma shots at T4 (black knights) and say bye bye to centurions.
Plus, in the "nightmare" lists i've not included the serpent spam list as i found it pretty easy to counter, also i've won a match against it the past week (was a tournament game against the current tournament leader)
Last but not least, the list you posted, while it could be fun to see your opponent face when he sees three
LR, but that list is for sure an auto lose...
DA aren't so popular because you need a bit of tactics with them, as they have no no-brainer unit to take, so you'll never see a kid you just started playing with
DA. I think they are one of the few really enjoyable armies, as you need to think about every move, every choice you do (few months ago i was thinking to start Tau, but then i saw how no-brainer tau had become and i've quitted that idea)
Now, to the
OP, sorry if i went a bit off topic xD
Anyway, let's talk. The knights inside an
LRC is nearly a must (at lest i nearly always field them) and also the black knights are simply awsome. Usually, 6 of them are more then enought, more is usually over-kill.
You said you liked the idea of termi heavy list, well i like it, but that isn't really a good idea, one or two, maybe even three, squads are ok, more usually no, as you'll find yourself with a really low model count.
Darkshroud is a...i don't know. i like it but usually i field it only in bike heavy lists.
Also don't forget greenwing. They aren't really fluffy i know, but they are usefull.
From a competitive view, i COULD say yes to allies, to a fluff point of view, NO WAY! we are the first legion!
A single land speeder is going down like a rhino would, so better if you pack two or three typhoons and lay waste from distance.
I like to create lists even if i'm not going to play them xD so if you want, feel free to ask for it, will try to sort out something