both great boats in my subjective opinion- have owned 2 sports & 1 swordfish!
usual premises:
1. different conditions require different ski for most intermediate paddlers - flat vs 20knt rough conditions
2. try before you buy - every butt seems to suit different seats & we all paddle in different conditions
as an experienced intermediate paddler I would prefer a faster boat than these two on flat water - if I were to choose between the two on flat water, I would take the swordfish as it is faster than the sport (guess around 0.2-0.3km.hr difference).
in most off shore conditions I would choose the swordfish
if I were to paddle the molokai race in bigger conditions I would prefer the sport as it is more comfortable & more stable.
to truly compete with fenn's swordfish, I would believe epic have to bring out another ski - sport closer to fenn xt than swordfish!
also the sport has a bigger seat area (even Z model) than the swordfish which would suit the bigger person........i have seen one particular 120kg plus person paddle past me on his sport with ease, so at the end of the day it comes down to the engine for pure speed.
swordfish glass construction is comparatively lighter than epic glass boat
with regards to weight comparison, swordfish is also comparatively cheaper in australia
swordfish cable steering mechanism & rudder appear more reliable than cord system of the epic.......have changed most of my epic steering systems to cable (courtesy of Lats - best spec ski builder around)
I have had hours of fun on both these boats & it has allowed a paddler of my level to get great pleasure out in the ocean that I wouldn't have managed on the elite skis
other boats to throw into this group are the think evo 2 ( have never paddled this but it has a good reputation) & the carbonology vault which I have owned - very similar to swordfish & worth a try..............certainly 'horses for course' stuff
ski's - McGregor C/R // Nelo 560L // Epic: 1st/2nd/3rdG V10/10L/10 sport, V14, V12, V8, V7, double -v10/v8 // Stellar: SES 1G/2G, SEI 2G // Fenn: double, elite SL, swordfish 1G/2G // Carbonology: vault, atom, flash //hayden spec ski / gibbons oc. ski / red7 / stealth spec/ocean ski / think legend