  With over 30 phase curves observed during the warm Spitzer mission, the
complete data set provides a wealth of information relating to trends and
three-dimensional properties of hot Jupiter atmospheres. In this work we
present a comparative study of seven new Spitzer phase curves for four planets
with equilibrium temperatures of T$_{eq}\sim$ 1300K: Qatar-2b, WASP-52b,
WASP-34b, and WASP-140b, as well as the reanalysis of the 4.5 $\micron$
Qatar-1b phase curve due to the similar equilibrium temperature. In total, five
4.5 $\micron$ phase curves and three 3.6 $\micron$ phase curves are analyzed
here with a uniform approach. Using these new results, in combination with
literature values for the entire population of published Spitzer phase curves
of hot Jupiters, we present evidence for a linear trend of increasing hot spot
offset with increasing orbital period, as well as observational evidence for
two classes of planets in apparent redistribution vs. equilibrium temperature
parameter space, and tentative evidence for a dependence of hot spot offset on
planetary surface gravity in our $\sim$ 1300 K sample. We do not find trends in
apparent heat redistribution with orbital period or gravity. Non-uniformity in
literature Spitzer data analysis techniques precludes a definitive
determination of the sources or lack of trends.
