I actually like the skills and I do take very care of my troops but I admit I can't lock a sector in 1 minute 7s like you pro bros do. ;-)
can i ask how many fights you do ? i take it you do a lot less fights and just enjoy picking and choosing what to fight with ?
most fighters are looking for troops that 1 they dont have to swap all the time and it slows there game down, 2 they are good all round, its all about speed for most guys, only when the attr gets really high do players slow the game down, most stop at around 60 to 80 as its costing them troops to carry on
but if they play like i think you might play and swap troops and spend time on it then you can carry on a lot and not lose so many troops as auto fighting brings
as for titan troops they are to weak the flying unit is crap once past a certain attr score it can not make it to the end of the fight screen in 1 move so it gets hit and sometimes wiped out in 1 hit because of that keen eye thing
as has been said the gliders from the previous era seem to be the most powerful and even the flying units for venus era are pretty powerful as there is not much between all 3 in attack and def but the fact the titan era unit can not fly the whole map makes it weaker that the others
so for fighters they want speed and of course not lose troops so no lost time swapping every battle