West Ham United
Manchester United, Aston Villa, Norwich City, Blackburn Rovers, QPR, Liverpool, Sheffield Wednesday, Tottenham Hotspur, Manchester City, Arsenal, Chelsea, Wimbledon, Everton, Sheffield United, Coventry City, Ipswich Town, Leeds United, Southampton, Oldham Athletic, Crystal Palace, Middlesbrough, Nottingham Forest.
I'll answer as many as i can think of. (in no particular order)
39 teams, that's all i can think of
In no particular order, Liverpool; Sheffield United; Sheffield Wednesday; Nottingham Forest (relegated); Oldham Athletic; Norwich City; Manchester City; Manchester United (league champions that season); Leeds United; Everton; Blackburn Rovers; Middlesbrough (relegated); Aston Villa; Arsenal; Chelsea; Tottenham Hotspur; Queens Park Rangers; Wimbledon; Coventry City; Ipswich Town; Crystal Palace (relegated); Southampton
If you are asking if which team , which has never ever been relegated, then the team is Arsenal.
20 teams baby
English Premier League - currently 20 teams (was 22 in its first few seasons). Scottish Premier League - 12 teams (was 10 teams for about 25 years).
This question is irrelevant, it cannot reveal a full picture. If you consider that in 1999 and 2008 Manchester United won both the Premier League and Champions League. That would mean that there are more than 8 players who have won both.