T5HO is nice, but 48W of it isn't going to be more light than 110 watts of PC. If it was just one PC bulb, I'd choose the T5 instead.
96W of T5 lighting is more than 110W of PC lighting, we got the data to prove it, it also has better spread and you can reduce the intensity up/down much eaiser(only got 1-2 options with PC's, here you have 4).
But yes, the T5 while better than PC, will not = over 2x the light.
Still, the light(t5's) will yield excellent results on any tank growing any plant at that wattage. I like the Tek brand and it tends to have the higher out ranges of the various brands listed.
On a 20 Gal tank, 2x 24 W is about all you'd ever need.
Realize that 48W of T5 is = to 80-90W or T12 lighting.
Or about 4-4.5 W/gal, which is a heck of a lot of light.
Focus on using less light, it will make most everything easier.