regardless of the theming I always found Space Mountain a rather painful experience, especially my shoulder ramming into the seat. A smoother, more Rock n Roller Coaster esque experience would be a higher priority for me.
It's much better now the new trains have been installed.
Planning WDW 2019
1997 DLP x2, 1998 DLP x2, 1999 DLP, 2000 DLP Millenium, 2002 DLP, 2003 DLR, 2004 WDW + DLP, 2005 DLP + DLR, 2006 WDW, 2007 DLP x2, 2008 WDW + DLP x3, 2009 DLP x7, 2010 WDW (+ extra week due to ash cloud!), 2011 DLR, 2012 WDW + DLP, 2013 WDW + DLP, 2014 WDW + DLPx3 (inc. daytrip for Ratatouille preview), 2015 DLR + DLPx3, 2016 WDW + DLP, 2017 WDW x2 + DLP, 2018 WDW + DLP x2. Coming up - ?