FWIW I have never found a .... ahem .... "session IPA" that was as sessionable as a good IPA....
I really enjoy Lagunitas Daytime which they refer to as a "fractional IPA" @ 4.65% ABV and 54 IBUs. I think it tastes a lot like their normal IPA.
On Tap/Bottled: Maibock, Spiced Copper, Iliff IPA, G Pils
Fermenting: American Strong w/Cherry
Up Next: Red Rye, Dunkel