Looking at the specs I've noticed there's a very large difference between the Lonestar and the Lonestar Special.
The LS has 6L6 valves, whereas the LS-S runs off EL84s... and obviously the EL84s sounds better :D IMO
The LS special is a really nice amp and te El84s do have a sweet compressed tone.
But the better than 6L6s is a purely subjective matter (hence you put IMO)
I absolutely love 6L6s(or 5881s) for some things - my rack power amp, the Fender Prosonic and also the little 10W Cornell all have them (and the Mesa DC5 that I am babysitting does too)
The tone is bold and open and a little bit hard edged.
My Marshall JCM 800 has El34 and whilst they are bold they dont have such a hard edge or open top end as the 6L6s, but they compress in a really familiar way and it is such a classic rock tone
They have a very different tonal response to EL84s which I have in my Wolftone and Atomic amps but maybe share a little more in common than they do with the 6L6s (to my ears) as both EL valves seem to have a bit more compression and warmth whilst the 6L6s have the clarity and a more strident tone - bolder in some ways