You should of course log your actual instrument time. Personally I can't be bothered with that and I just log any instrument approaches I fly as IF.
"I just log any instrument approaches I fly as IF. [/QUOTE]
Some would call it cheating. Some would call it wanking. Some would call it both. I recall seeing the log book of a first officer who flew for Ansett Airlines of Australia. He claimed 5200 hours total time of which he logged 2800 hours as inflight instrument time. The weather in Australia is generally fine most of the time
His cheating paid off though. It didn't hurt him in the long term as he got an eventual command with a well known Hong Kong operator so by now he would have over 15,000 hours and probably around 12,000 instrument flight time of which probably 99% would be on autopilot.