#2. The legs on #1 look like they could be annoying
I have picked two in the IKEA catalog
Neither. The first looks like it belongs in a woodworking shop. The second belongs in a hairdressing shop. YMMV
... Jessica: Eeek! The idea of toughened glass shattering during a tremor whilst you are fishing around with cables doesn't bear thinking about.
Never mind a tremor. If anything breaks the glass, your 24" iMac hits the floor. Better have good backups (and thick carpets!)